[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Perunovic, Milos"]
[Black "Wang, Qibiao"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "2591"]
[BlackElo "2362"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,123,10,0,0,6,4,1,12,4,0,0,0,0,0,0,0,0,0,-8,-8,-7,0,0,0,-3,0,0,15,4,0,-7,60,60,53,41,41,41,41,41,41,41,32,38,44,45,63,65,66,57,56,56,44,21,27,32,29,26,21,0,22,22,47,21,22,22,22,25,93,213,213,213,198,205,208,208,172,86,86,97,95,0,0,0,175,175,208,175,178,150,136,86,86,88,85,79,80,79,159,87,87,87,87,87,589,564,850,764,4960,4133,1462,750,742,742]} 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nc3 Nxe5 {The main line 6...Nxe5 scores better than 6...Nxc3.} 7. dxe5 Bb4 {C43: Petroff Defence: 3 d4.} 8. O-O Nxc3 9. bxc3 Bxc3 {[%mdl 64] Double Attack. The position is equal.} 10. Rb1 O-O ({Avoid the trap} 10... Bxe5 $2 11. Re1 $18) 11. Bxh7+ {[%mdl 64] Decoy} Kxh7 12. Qd3+ {[%mdl 64] Double Attack} Kg8 13. Qxc3 b6 14. Qg3 {aiming for Bh6!} Qd7 15. h3 Qf5 16. Bg5 {[#]} c5 $146 ({Predecessor:} 16... Qg6 17. Rb3 Re8 18. f4 Bf5 19. Qf2 Qc6 20. Rg3 Qxc2 21. Qf3 Qe4 22. Qd1 Re6 {1-0 (43) Jones,G (2679)-Li,D (2562) Caleta 2020}) 17. c3 $36 {[%mdl 2048] Black is under pressure.} Ba6 18. Rfe1 Qd3 19. Qh4 Qh7 ({But not} 19... Qxc3 20. Rbc1 $15) 20. Qf4 Rae8 21. Rbd1 Bd3 (21... Bc4 $11) 22. Re3 $1 $14 c4 23. Rg3 Qe4 $1 24. Qxe4 Bxe4 25. Rd4 Rxe5 26. Bf6 $1 Re6 27. Bxg7 {Threatens to win with Bh6+.} Rfe8 28. Bh6+ Kh7 29. Bg5 f6 30. Bd2 Rg8 31. Rxg8 Kxg8 {[%mdl 4096] Endgame KRB-KRB} 32. f3 Bd3 33. Rxd5 Re2 34. Bh6 Rxa2 35. Rd7 a5 36. Rg7+ Kh8 37. Rb7 a4 38. Bg7+ ({Reject} 38. Rxb6 a3 $15) 38... Kg8 39. Bxf6 a3 (39... Ra1+ $11 40. Kh2 Ra2) 40. Rg7+ $1 $16 Kf8 41. Ra7 Ra1+ 42. Kh2 $1 a2 43. h4 $1 Bg6 {[#]} 44. g4 (44. Bd4 $1 $18) 44... Be8 45. Bd4 Bc6 46. h5 (46. Bxb6 $16 Bxf3 47. Bc5+ Ke8 48. Kg3) 46... Bxf3 $11 47. Kg3 Be4 $2 (47... b5 $1 $11 {and Black stays safe.}) 48. Bxb6 $18 Bc2 49. Bc5+ Ke8 50. g5 Rh1 51. Rxa2 Rxh5 52. Kg4 Rh2 {And now ...Bd1+ would win.} 53. Ra7 (53. Kf4 {seems wilder.} Kf7 54. Bd4 Re2 55. Kf3 Rh2 56. Ra6) 53... Rg2+ 54. Kf4 Bd3 {[#]} (54... Re2 $142) 55. Re7+ (55. Rg7 $142 $1) 55... Kd8 $16 56. Rg7 {Bd4 is the strong threat.} Re2 57. g6 {Black must now prevent Bb6+.} Rg2 $2 {[%mdl 8192] This move loses the game for Black.} (57... Re4+ $16 {lives longer.} 58. Kf5 Re3+ 59. Kf4 Re4+ 60. Kf5 Re3+ 61. Kg4 Re4+ 62. Kg3 Re6) 58. Rg8+ $18 {White is clearly winning.} Kd7 59. g7 Bh7 60. Ra8 Ke6 61. Bd4 Kf7 62. Rf8+ {Accuracy: White = 88%, Black = 72%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Korley, Kassa"]
[Black "Yoo, Christopher Woojin"]
[Result "1/2-1/2"]
[ECO "B73"]
[WhiteElo "2430"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,76,8,4,16,18,7,12,15,13,6,0,7,0,26,19,19,12,26,0,0,0,11,4,14,0,19,0,41,-3,24,-8,14,-13,0,0,0,-6,0,0,32,10,20,0,0,0,0,0,25,0,0,0,29,0,0,0,57]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. h3 g6 7. Be3 Bg7 8. Be2 O-O 9. O-O Bd7 10. Qd2 Nxd4 11. Bxd4 Bc6 12. Bf3 Nd7 {B73: Sicilian Dragon: Classical System without 9 Nb3.} 13. Bxg7 Kxg7 {[#]} 14. Rfe1 $146 ({Predecessor:} 14. Nd5 e6 15. Ne3 Kg8 16. Nd5 Kg7 17. Ne3 Ne5 18. Be2 g5 19. Rad1 Bxe4 20. Qxd6 Qf6 21. Qb4 Bc6 22. Bb5 Bxb5 23. Qxb5 b6 24. Qe2 Rac8 {½-½ (24) Friedrich,N (2251)-Horvath,C (2519) Cesenatico 2018}) 14... Qb6 15. b3 Qa5 16. Rad1 Rfd8 17. Re3 Nf6 18. a4 Rac8 19. Qe2 e6 20. Qd2 a6 21. Rd3 Qe5 22. Rd4 h6 23. Re1 Be8 24. Ne2 Rc7 25. Rd1 Bc6 26. Qc3 Rcd7 27. a5 Nh7 28. h4 Nf6 29. g3 Kh7 30. Bg2 Qb5 31. Qe1 Qc5 32. b4 Qxc2 33. Rc1 Qb2 34. Rb1 Qc2 {Black wants to play ...e5.} 35. Rc1 Qb2 36. Rb1 Qc2 {Threatening ...e5.} 37. Rc1 Qb2 38. Rb1 Qc2 {A rather calm draw. Accuracy: White = 77%, Black = 74%.} (38... Qa3 $11) 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Wang, Kevin"]
[Black "Niemann, Hans Moke"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2418"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,13,28,27,32,27,34,29,45,29,72,84,78,77,79,33,31,9,13,5,24,2,10,19,0,0,8,6,15,0,-1,0,6,-33,-30,-32,-31,-40,-29,-42,0,-35,-33,-71,-7,-15,-8,-75,-65,-49,-30,-25,-17,-55,-55,-47,0,0,0,0,0,0,0,-68,-68,-95,-39,-52,-8,-11,-2,-17,-24,-742,-732,-1497,-1292]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Bc4 Nb6 5. Bb3 c4 6. Bc2 {B22: Sicilian: 2 c3.} d6 7. exd6 e5 8. Nf3 {White is slightly better.} Nc6 9. a4 {[%cal Ba2a4,Ba4a5][%mdl 32] [#]} f5 $146 ({Predecessor:} 9... Bxd6 10. a5 Nd5 11. a6 Nf4 12. O-O O-O 13. Na3 Bxa3 14. Rxa3 Nd3 15. Ne1 e4 16. Nxd3 exd3 {0-1 (69) Moiseenko,V (2532)-Potapov,P (2489) Sochi 2019}) 10. a5 Nd5 11. d3 cxd3 12. Qxd3 Qxd6 13. Bb3 Nc7 14. Qe2 {Threatens to win with 0-0.} Be6 15. Ba4 {With the idea Nxe5.} e4 $1 {[%cal Re4f3]} 16. Nd4 Bd7 17. Nxc6 Bxc6 18. O-O Be7 19. Rd1 Qe6 20. Bxc6+ Qxc6 21. Qh5+ g6 22. Qh6 Ne6 $36 {[%mdl 2048] Black has some pressure.} 23. Be3 Bf8 24. Qh4 Be7 25. Qh6 Bf6 26. Nd2 {[#]} Bg7 (26... O-O-O $1 $17) 27. Qh4 $11 O-O {White should prevent ...f4.} 28. Nb3 (28. f3 $1 $11 {remains equal.}) 28... Bf6 $17 29. Qg3 Qb5 30. Nd4 Bxd4 31. Bxd4 f4 32. Qg4 Rae8 33. Bxa7 Qxb2 34. Rab1 Qxc3 35. Rxb7 Qxa5 36. h4 (36. Qh3 $11 h5 37. Qb3) 36... Rf7 $15 37. Rb8 {[#]} Rxb8 (37... Rfe7 $1 $17 38. Rxe8+ Rxe8) 38. Bxb8 Rf6 39. Qe2 Qa4 {Strongly threatening ...f3.} 40. Be5 f3 41. Qd2 $2 {[%mdl 8192] [#]} (41. Qe1 $11 Rf5 42. Bg3) 41... e3 $1 $19 {[%cal Re3d2][%mdl 576] Discovered Attack} 42. fxe3 (42. Qxe3 Qxd1+) 42... f2+ {Accuracy: White = 69%, Black = 82%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Kaliksteyn, Alexander"]
[Black "Paragua, Mark"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2394"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,70,0,4,-9,-4,-8,-8,-4,0,0,0,0,15,-23,-9,-34,-16,-31,-31,-36,-46,-58,-62,-61,-64,-140,-52,-54,-58,-57,-47,-45,-50,-83,-80,-91,-22,-35,-7,-23,0,0,20,14,26,-16,-3,-76,-79,-114,-119,-95,-99,-448,-438,-417,-410,-517,-520,-29974,-29971]} 1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. Nf3 c5 5. Nbd2 Nc6 6. c3 Nh5 7. Bg3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Nxg3 8. hxg3 h6 9. Bd3 {The position is equal.} Qc7 10. Qe2 Bd7 11. O-O {[#]} g5 $146 ({Predecessor:} 11... c4 12. Bc2 Bd6 13. e4 O-O-O 14. e5 Be7 15. b3 b5 16. a4 Nb8 17. axb5 Bxb5 18. bxc4 dxc4 {1-0 (28) Predescu,S-Winberg,J Edmonton 2000}) 12. e4 {aiming for exd5.} O-O-O 13. dxc5 Bxc5 14. exd5 exd5 15. Nb3 Bb6 16. Nfd4 h5 17. Bf5 h4 {Hoping for ...Bxf5.} 18. gxh4 (18. g4 $15) 18... Bxf5 ({Reject} 18... Nxd4 $6 19. cxd4 Kb8 20. Rac1 $11) (18... Rxh4 $17 {[%csl Gh4][%cal Rc7h2]} 19. g3 Rh6) 19. Nxf5 $15 Qf4 20. Qf3 Qxf3 21. gxf3 gxh4 22. Rae1 Rh5 23. Nbd4 Bc7 ({Black should play} 23... Nxd4 $17 24. Nxd4 Kd7) 24. Kh1 $11 Ne5 25. Re3 Nc4 26. Re2 Rg5 27. Rfe1 h3 28. Ng3 Bf4 29. Re7 (29. Ndf5 $11) 29... Nxb2 $17 30. Nde2 Bd6 $36 {[%mdl 2048] Black is really pushing.} 31. Rxf7 Re8 {...Bxg3 is the strong threat.} 32. f4 $2 {[%mdl 8192] [#] This costs White the game.} (32. Rf1 $17 {nothing else works.}) 32... Rxg3 $1 $19 {[%mdl 512]} 33. fxg3 (33. Nxg3 Rxe1+) 33... Nd3 34. Rb1 {Strongly threatening Nd4.} Rxe2 35. Rbxb7 (35. Rh7 $19 Nc5 36. Rxh3) 35... Rg2 {Accuracy: White = 56%, Black = 83%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Colas, Joshua"]
[Black "Khamrakulov, Djurabek"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2319"]
[BlackElo "2525"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,58,-10,-12,-15,-11,-22,-9,-19,0,-10,-6,-28,-24,-31,-31,-31,-31,-41,-44,-44,-44,-48,-44,-54,-31,-36,-33,-33,-33,-56,-44,-49,-41,-41,-45,-52,-43,-50,-43,-49,-54,-45,-40,-36,0,0,0,0,100,99,86]} 1. Nf3 d5 2. c4 d4 3. e3 Nc6 4. d3 e5 5. exd4 exd4 6. Be2 {A09: Réti Opening: 1 Nf3 d5 2 c4.} Be7 7. O-O Nf6 8. b3 {[#] The position is equal.} a5 $146 ({Predecessor:} 8... O-O 9. Na3 Nb4 10. Ne1 c5 11. Nac2 Nc6 12. f4 Qc7 13. Bf3 Rb8 14. h3 Bd6 {0-1 (29) Bischoff,K (2547)-Mchedlishvili,M (2623) Germany 2012}) 9. Bb2 O-O 10. Na3 Na7 11. Qd2 Re8 {[#] aiming for ...Bb4.} 12. Nb5 c5 13. Nxa7 Rxa7 14. Rae1 Ra6 15. a4 Qc7 16. Bd1 Rf8 17. Bc1 h6 18. h3 Bd6 19. Qe2 Re8 20. Qd2 Be6 21. Nh4 g5 22. Nf3 {With the idea Nxg5!} Bf4 23. Qc2 Bf5 24. Rxe8+ Nxe8 25. Re1 Re6 $1 26. Rxe6 fxe6 27. Bxf4 Qxf4 28. Qe2 {And now g4 would win.} Ng7 (28... Qd6 $11) 29. Ne5 $16 Bh7 {Accuracy: White = 100%, Black = 96%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Khamrakulov, Djurabek"]
[Black "Paragua, Mark"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2525"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,40,19,8,24,12,26,0,12,0,0,-7,-10,-31,-30,-27,-37,-45,-35,-46,-78,-54,10]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nc6 7. Nc3 e5 8. d5 Nb8 9. e4 a5 10. h3 Na6 11. Be3 b6 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6.} 12. a3 {[#]} Bd7 $146 ({Predecessor:} 12... Nc5 13. Qc2 a4 14. Bxc5 bxc5 15. Nxa4 Nxe4 16. b4 cxb4 17. axb4 f5 18. c5 Ba6 19. Rfd1 {0-1 (42) Kovacevic,S (2229)-Cabarkapa,N (2424) Novi Sad 2016}) 13. Ne1 Qe8 {The position is equal.} 14. b3 Nh5 15. Nd3 Nc5 16. Bxc5 (16. Nxc5 {is more complex.} bxc5 17. Bd2 f5 18. a4 f4 19. g4) 16... bxc5 17. b4 axb4 18. axb4 cxb4 19. Nxb4 Rxa1 20. Qxa1 Qa8 (20... f5 $15) 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Niemann, Hans Moke"]
[Black "Korley, Kassa"]
[Result "1-0"]
[ECO "D36"]
[WhiteElo "2459"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,129,12,9,41,-14,21,33,40,25,80,74,49,12,39,43,52,59,71,55,69,60,75,84,198,197,196,195,186,197,270,293,273,280,264,266,276,263,250,248,311,311,308,299,386,409,407,405,378,388,364,0,406,231,241,228,261,244,250,241,287,279,276,290,314,307,341,343,368,365,366,356,361,346,370,362,385,380,403,406,501,498,614,526,542,531,502,512,505,445,568,542,479,394,462,433,620,608,611,596,633,626,662,658,745,727,708,680,656,615,783,768]} 1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. Nf3 Be7 5. cxd5 exd5 6. Bg5 O-O 7. e3 c6 8. Bd3 h6 9. Bh4 Be6 10. Qc2 Nbd7 11. h3 a5 {[#] D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} 12. g4 $146 ({White should play} 12. Bg3 $14) ({Predecessor:} 12. Bg3 c5 13. O-O c4 14. Bf5 Qb6 15. Ne5 Rad8 16. Bh4 Bxf5 17. Qxf5 Qe6 18. Qxe6 fxe6 {½-½ (32) Hauff,A (2301)-Enescu,C (2344) ICCF email 2011}) 12... Re8 13. Rg1 a4 {White is slightly better.} 14. g5 hxg5 (14... Nh5 $11) 15. Nxg5 $16 Nf8 16. f4 Ne4 17. O-O-O $1 (17. Ncxe4 dxe4 18. Bxe4 Bd5 $17) 17... a3 18. b3 (18. Ncxe4 dxe4 19. Bc4 (19. Bxe4 $2 axb2+ 20. Kd2 Bd5 $19) 19... axb2+ 20. Kxb2 Bxc4 $19) 18... Nxc3 19. Qxc3 Bf6 20. f5 Bd7 21. e4 $1 {[%cal Re4e5] Hoping for e5. Black is now going downhill.} c5 (21... Nh7 $16) 22. e5 $1 $18 {[%cal Re5f6]} cxd4 {[#]} 23. exf6 $3 {[%mdl 512]} Qxf6 {[#]} (23... dxc3 $2 24. Nxf7 $1 {[%mdl 512]} Qxf6 25. Bxf6 $18) 24. Qd2 $1 {Threatens to win with Nf3.} Rac8+ (24... Bxf5 $142 25. Rdf1 Qc6+ 26. Kb1 Bxd3+ 27. Qxd3 Re3) 25. Kb1 {Nf3 is the strong threat.} Bxf5 26. Nf3 Bxd3+ 27. Qxd3 Qf4 28. Rg4 (28. Qxd4 $6 Qe4+ 29. Qxe4 dxe4 $18) 28... Qe3 {( -> ...Rc1+!)} 29. Rxd4 (29. Qxd4 $6 Ng6) 29... Ng6 30. Bg5 ({Don't play} 30. Rxd5 $6 Rc3 $16) 30... Qf2 {[%csl Ga3][%cal Rf2b2]} 31. Bd2 Re2 32. Rxd5 Nf4 {[#]} 33. Qf5 $1 {[%mdl 512]} Ne6 34. Rd7 Rf8 35. Rd5 $2 (35. h4 $18) 35... Nc7 $2 {[%mdl 8192]} (35... Rc8 $1 $11 36. h4 b6) 36. Ng5 (36. Rd4 $142 Ne6 37. Rh4) 36... Qxf5+ 37. Rxf5 Rd8 38. Kc1 (38. Nxf7 Rdxd2 39. Rxd2 Rxd2 $17) 38... f6 39. Nf3 Nd5 {intending ...g6.} 40. Nd4 Rh2 41. Rf3 Ne7 42. Nc2 Rc8 43. b4 Nd5 {aiming for ...Nxb4!} 44. Kb1 Nb6 45. Nxa3 ({Not} 45. Rxa3 Rd8 $14) 45... Rd8 46. Kc1 Kf7 47. Nc2 Nc4 {[%cal Rh2d2]} 48. Be1 Rxd1+ 49. Kxd1 b5 50. a3 Nb2+ 51. Kc1 Nc4 52. Nd4 Rh1 53. Kd1 Nd6 54. Ke2 g5 55. Re3 f5 56. Re5 Rxh3 57. Rd5 {White is clearly winning.} Rh2+ (57... Nc4 $142 58. Rxf5+ Kg6 59. Rxb5 Re3+ 60. Kf1 Rd3) 58. Kd1 Nc4 {And now ...Ne3+ would win.} 59. Rxf5+ {[%mdl 64] Double Attack} Kg6 {Strongly threatening ...Ne3+.} 60. Rf3 g4 61. Rc3 Ne5 62. Bg3 Rh3 63. Ne2 Rh1+ 64. Kc2 Nc4 {[#]} 65. a4 $1 {Accuracy: White = 88%, Black = 59%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Yoo, Christopher Woojin"]
[Black "Perunovic, Milos"]
[Result "1-0"]
[ECO "B80"]
[WhiteElo "2430"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,65,41,21,26,37,36,5,10,0,20,9,84,72,90,59,112,112,110,98,102,110,106,108,116,114,168,158,167,137,216,193,199,177,156,158,317,324,429,447,427,424,396,374,360,284,624,699,852,822,29975,29976]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 e6 4. d4 cxd4 5. Nxd4 d6 6. g3 Nf6 7. Bg2 Bd7 8. O-O Be7 9. Nce2 Nxd4 {B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack.} 10. Nxd4 Rc8 11. b3 b5 {[#] The position is equal.} 12. Qe2 $146 ({Predecessor:} 12. Qd3 Qb6 13. Bb2 O-O 14. Rac1 Rc7 15. Nf3 e5 16. Nd2 Rfc8 17. c4 h6 18. Qb1 {0-1 (48) Neiksans,A (2560)-Van Wely,L (2609) chess.com INT 2020}) 12... Qb6 13. Be3 Qb8 (13... Qa5 $11 {remains equal.}) 14. a4 $1 $16 {[%cal Ra4b5]} bxa4 15. bxa4 O-O (15... Qc7 $14) 16. Rfb1 $36 {[%mdl 2048] White is really pushing.} Qc7 17. Nb5 $1 {[%cal Rb5c7]} Qxc2 18. Qxc2 Rxc2 19. Bxa7 d5 {[#]} 20. e5 $1 Ne4 (20... Ng4 $16 {is a better defense.}) 21. Bxe4 dxe4 22. a5 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} f6 (22... Ra8 $16) 23. a6 fxe5 24. Bb6 Bc6 25. a7 Ba8 $2 {This move loses the game for Black.} (25... e3 $16 {was necessary.} 26. Bxe3 Ba8) 26. Nc7 $18 e3 27. Nxa8 {Threatens to win with Nc7.} exf2+ {[#]} 28. Kf1 $1 Rxa8 29. Be3 Bd6 30. Rb6 ({Not} 30. Bxf2 Rf8 $16) 30... Bc7 $2 (30... Rc3 31. Rxd6 Rxe3) 31. Rb7 Rc3 32. Rc1 Rxe3 33. Rcxc7 {Accuracy: White = 90%, Black = 40%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Wang, Qibiao"]
[Black "Kaliksteyn, Alexander"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2362"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,66,12,13,15,4,0,0,0,0,6,11,8,2,11,5,8,0,0,0,20,12,33,27,56,47,30,32,39,0,0,0,0,-28,-30,-36,-36,-78,-75,-243,-250,-224,-238,-240,-237,-673,-662,-951,-947,-1366,-1286,-2475,-1798,-29989,-29990,-29991,-29992,-29992,-29993]} 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nf3 Bd6 5. Bxd6 Qxd6 6. c4 O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 7. Nbd2 Nbd7 8. cxd5 exd5 {The position is equal.} 9. Qc2 Re8 10. Rc1 c6 11. Bd3 {[#]} Qe7 $146 ({Predecessor:} 11... Nf8 12. Ne5 Ne6 13. Nef3 Nf4 14. Bf1 g6 15. Ne5 N4h5 16. Be2 Ng7 17. O-O Bf5 {½-½ (100) Azevedo,A (2033)-Cunha,R (1916) Natal 2013}) 12. O-O Ne4 13. h3 Ndf6 14. Ne5 Bf5 15. Nb3 g6 16. g4 Bc8 17. f3 Nd6 18. Rce1 Nd7 {[%cal Bf6d7,Bd7b6,Bb6d5][%mdl 32]} 19. f4 f6 20. Nf3 Ne4 21. Bxe4 dxe4 22. Nh4 Nb6 23. Qc5 Qg7 {[#] Strongly threatening ...Qh6.} 24. f5 $2 {White does not recover from this.} (24. Qc2 $17) 24... Qh6 $19 25. Ng2 Qxh3 26. fxg6 Bxg4 {aiming for ...Bf3.} 27. Rxf6 $2 (27. Qd6 Bf3 28. Qh2 Qxh2+ 29. Kxh2) 27... Nd5 {...Bf3 is the strong threat.} ({Stronger than} 27... Bf3 28. gxh7+ Kxh7 29. Qg5 $11) 28. gxh7+ Kxh7 {[#] Threatens to win with ...Bf3.} 29. Rf7+ Kg8 30. Rxb7 Re6 {( -> ...Bf3)} 31. Nd2 Bf3 {Black mates.} 32. Nxf3 exf3 {[%csl Gf3][%cal Rh3g2]} 33. Qc2 Rh6 {Accuracy: White = 48%, Black = 100%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Colas, Joshua"]
[Black "Wang, Kevin"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2319"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,143,6,6,2,0,0,-8,-8,-6,0,0,0,0,0,0,3,6,14,0,0,-21,-12,-33,-22,-31,-31,-38,-29,-54,-54,-53,-47,-48,-39,-57,0,-54,-37,-45,-38,-47,-46,-60,-43,-60,-62,-57,-56,-59,-35,-43,-11,-40,-23,-31,-6,-46,-33,-29,0,-10,37,32,64,73,46,0,51,0,36,45,120,135,134,-33,0,0,0,0,14,16,16,15,9,16,170,165,164,162,341,339,452,449,431,435,422,413,451,436,408,173,129,125,821,186,183,179,233,233,230,210,182,202,204,204,874,817,5848,5795,4927,2551,29954,29948,29970,29969,29988,29988]} 1. c4 e6 2. d4 d5 3. cxd5 exd5 4. Nc3 c6 5. Qc2 Bd6 6. Nf3 Ne7 7. Bg5 f6 8. Bh4 Bf5 9. Qd2 O-O 10. e3 Re8 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} 11. Be2 Nd7 {[#]} 12. O-O $146 ({Predecessor:} 12. Bg3 Nf8 13. O-O Bxg3 14. hxg3 Nfg6 15. Rac1 Nc8 16. Bd3 Bxd3 17. Qxd3 Nd6 18. Nd2 {1-0 (39) Syperek,S-Buhr,C (2195) Halle 1993}) 12... Bg6 {The position is equal.} 13. Bg3 Nf5 14. Bxd6 Nxd6 15. Nh4 Bf7 16. Bd3 g6 17. Qc2 f5 18. g3 Qf6 19. Ng2 g5 20. f3 Re7 21. Qf2 Rae8 22. Rae1 h6 23. h3 Bg6 24. Qc2 Kg7 25. Kh2 Rf7 26. Na4 Rfe7 27. Nc3 Bf7 28. Ne2 Qe6 29. b3 Nf6 30. Nc3 {[%cal Be2c3,Bc3a4,Ba4c5][%mdl 32]} Qd7 31. Na4 Qc7 32. Qf2 Bg6 33. Bb1 Rf7 34. Nc5 Bh5 35. Qc2 Rfe7 36. Nd3 Nf7 37. f4 (37. Rc1 {looks sharper.} Bg6 38. f4 Bh7 39. Ne5 Kh8 40. Qb2) 37... Ne4 (37... Qc8 {keeps more tension.} 38. Ne5 Ne4 39. Qb2 Nfd6 40. Rg1 Kh7) 38. Ne5 Nxe5 39. dxe5 Bg6 40. Qb2 Kh7 41. Bxe4 $1 dxe4 42. g4 Rd7 (42... fxg4 $11 43. hxg4 Bf7) 43. Rf2 (43. Qf2 $14) 43... Rd5 44. Ref1 gxf4 (44... Qc8 $14) 45. exf4 $16 Rd3 46. Nh4 $2 ({Better is} 46. Qe2 $16) 46... Qe7 47. Nxg6 Kxg6 48. Rd2 {aiming for Rxd3.} Qd7 49. gxf5+ Qxf5 50. Rxd3 exd3 $11 {[%mdl 4096] Endgame KQR-KQR} 51. Qd4 {Rf3 is the strong threat.} Kh7 $2 (51... Re7 $11 {and Black stays safe.}) 52. Rf3 $1 $18 (52. Qxa7 Rd8 $11) 52... Rf8 53. Kg3 ({Much less strong is} 53. Qxd3 $6 Qxd3 54. Rxd3 Rxf4 $14) ({But not} 53. Rxd3 $6 Qxf4+ 54. Qxf4 Rxf4 $14) 53... Rg8+ $2 {[#]} (53... d2) 54. Kf2 $1 Qh5 {...Qh4+ would now be nice for Black.} 55. Qxd3+ Kh8 56. Rg3 Qh4 57. Qf3 Rf8 58. Ke3 Qe7 59. Qg4 $40 {[%mdl 128] White attacks with force.} (59. Qe4 $142 {Black must now prevent Qg6.} Qc5+ 60. Ke2 Qb5+ 61. Kf2 Qc5+ 62. Kg2) 59... Qc5+ 60. Ke2 {[%csl Gg3][%cal Rg4g7]} Qc2+ $2 {[%mdl 8192]} (60... Qb5+ $16 61. Rd3 Qb4) 61. Kf3 $2 (61. Kf1 {[%csl Gg3][%cal Rg4g7]} Qc1+ 62. Kg2 Qd2+ 63. Kh1 Qd5+ 64. Rg2) 61... Qd1+ 62. Kg2 {[%csl Gg3][%cal Rg4g7]} Qxg4 63. Rxg4 {KR-KR} h5 {[#]} 64. Rh4 $1 {[%cal Rh4h5]} Kg7 65. Kf3 ({Don't do} 65. Rxh5 $6 Rxf4 66. h4 Kg6 $16) 65... Kg6 66. Ke4 Rf5 $2 (66... b6 67. b4 a5) 67. e6 {Threatens to win with e7.} Ra5 {[#]} 68. f5+ $1 {[%mdl 512]} Kf6 (68... Rxf5 69. e7) 69. Rxh5 Rxa2 70. Rh6+ {White mates.} Kg7 71. Rg6+ Kh7 72. Ke5 {Accuracy: White = 79%, Black = 58%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Perunovic, Milos"]
[Black "Niemann, Hans Moke"]
[Result "1-0"]
[ECO "B69"]
[WhiteElo "2591"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,143,54,50,64,45,51,41,35,19,18,14,36,12,52,45,46,42,27,45,39,14,0,0,10,10,74,65,100,84,79,79,85,14,100,74,67,72,60,71,80,66,82,92,81,97,129,0,0,0,0,0,0,-35,0,0,0,0,0,0,0,0,29,34,253,253,238,245,210,141,131,133,123,85,124,34,77,77,77,80,77,77,87,0,39,0,100,16,108,12,13,13,13,13,986,930,1194,1211,1061,425,463,0,1135,1088,1041,1000,948,956,12841,12842,12842,12843,12843,12843,12844,12844,12845,12845,12845,12846,12847,12847,12849,12849]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f4 Be7 10. Nf3 b5 11. Bxf6 gxf6 12. Kb1 b4 {B69: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7 9 f4 Be7 10 Nf3 b5 11 Bxf6.} 13. Ne2 h5 14. Ned4 Qb6 {White is slightly better.} 15. Bc4 Na5 {[%cal Bc6a5,Ba5b7,Bb7c5][%mdl 32]} 16. Bd3 Nb7 {[#]} 17. Rhe1 $146 ({Predecessor:} 17. Qe2 Nc5 18. Bc4 a5 19. Bb5 O-O-O 20. f5 Kb8 21. Bxd7 Rxd7 22. Nb3 Nb7 23. fxe6 fxe6 {0-1 (47) Matsenko,S (2534)-Demchenko,A (2645) Konya 2017}) 17... Nc5 18. Bc4 Rc8 19. Nb3 Nb7 20. Qe2 a5 21. Nbd4 (21. f5 $5) 21... a4 22. Bb5 Bxb5 23. Nxb5 Qc5 (23... Rc5 $11 24. Nbd4 Na5) 24. f5 $36 {[%mdl 2048] White is more active.} e5 25. Rd5 Qc4 26. Qxc4 Rxc4 27. b3 (27. Nd2 $16 Rc5 28. c3 Rxd5 29. Nc7+ (29. exd5 bxc3 30. Nxc3 Rg8 $14) 29... Kd7 30. Nxd5 bxc3 31. Nxc3 (31. bxc3 Nc5 $14)) 27... Rc5 (27... Rc6 $11) 28. Rxc5 ({Reject} 28. bxa4 $6 Kd7 $11) (28. c3 {seems wilder.} axb3 29. cxb4 bxa2+ 30. Kxa2 Rc6 31. Re3) 28... Nxc5 29. Nc7+ Kd7 30. Nd5 Rb8 31. Nd2 Bd8 32. a3 bxa3 33. b4 Kc6 {aiming for ...Nxe4!} 34. Ka2 (34. Rd1 $16) 34... Nxe4 $1 $11 {[%mdl 64] Remove Defender} 35. Rxe4 Kxd5 36. Kxa3 {[%mdl 4096] Endgame KRB-KRN} Kc6 {And now ...d5 would win.} 37. c4 Ra8 38. Rh4 d5 39. cxd5+ Kxd5 40. Rxh5 e4 41. Rh8 {Threatens to win with Re8.} Rb8 (41... e3 $5 {[%cal Re3d2]} 42. Nf3 Rc8 $11) 42. Re8 e3 $2 ({Black should play} 42... Bc7 $1 $14 43. Nxe4 Rxe8 44. Nxf6+ {[%mdl 64] Double Attack} Kc6 45. Nxe8 Bxh2) 43. Rxe3 $18 Bc7 44. Rd3+ ({Don't play} 44. Kxa4 $6 Ra8+ 45. Kb3 Bxh2 $16) 44... Kc6 45. Kxa4 Ra8+ 46. Kb3 Bxh2 47. Nf3 Bc7 48. g4 (48. Nd4+ $1 $16 Kb6 49. Nc2) 48... Rg8 49. Rd4 Bb6 50. Rc4+ Kd5 51. Nd2 Bd4 52. Nf3 Bb6 53. Nd2 (53. Nh4 $14) 53... Bd4 $1 $16 54. b5 (54. Nb1 $1 $16) 54... Rg7 (54... Re8 $11) 55. Rb4 (55. Nb1 $1 $16) 55... Rg8 $11 56. b6 Bc5 57. Ne4 Be7 $2 {[%mdl 8192] Black is on the road to losing.} (57... Bd4 $11) 58. Nc3+ $1 $18 Kd6 {[#]} 59. Rd4+ $1 Ke5 60. Re4+ (60. Rd7 $142 Bd6 61. Nb5) 60... Kd6 {Black hopes to continue with ...Rb8.} 61. Rd4+ (61. Kb4 $142) 61... Ke5 $1 {[%cal Re5d4]} 62. Rd7 {White is clearly winning.} Bd6 63. b7 Bb8 64. Nd5 Rxg4 65. Rd8 Ba7 66. Ra8 Kxd5 67. Rxa7 {KR-KR} Rg3+ 68. Kb4 Rg1 {[#]} 69. Ra3 $1 ({Not} 69. Ra5+ Kc6 $16) 69... Rg4+ 70. Kb5 Rg1 71. Ra4 Rb1+ 72. Rb4 {Accuracy: White = 72%, Black = 66%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Paragua, Mark"]
[Black "Wang, Qibiao"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2513"]
[BlackElo "2362"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,85,2,-15,-11,-19,-7,-5,0,0,23,-6,6,0,120,128,145,137,143,132,296,179,163,172,355,352,341,251,354,105,100,109,116,86,103,100,97,100,102,102,114,101,117,108,164,153,250,250,246,243,223,243,238,228,246,212,230,133,314,314,387,370,397,386,511,506,550,539,2070,2525,2522,2300,2020,1798]} 1. e4 e5 2. Nc3 Nf6 3. g3 Bc5 4. Bg2 d6 5. Nge2 Nc6 6. d3 a6 7. O-O O-O 8. h3 b5 {C26: Vienna Game: 2...Nf6, sidelines .} 9. a3 h6 10. Kh2 Bb7 {The position is equal.} 11. f4 Re8 {[#]} 12. f5 $146 ({Predecessor:} 12. g4 Bb6 13. Ng3 Nd7 14. Nd5 Ba7 15. f5 Ne7 16. f6 Nxd5 17. exd5 Nxf6 18. g5 Nxd5 {1-0 (24) Bergquist,R-Hansen,H Norway 1998}) 12... Nd4 13. g4 Rb8 (13... Nxe2 $11 {remains equal.} 14. Qxe2 d5) 14. Ng3 $1 $16 Nh7 15. Nd5 f6 16. h4 Ba7 $2 (16... Rf8 $16 {is a better defense.} 17. c3 Nc6) 17. Nh5 c6 18. Ne3 c5 $2 (18... b4 {was worth a try.} 19. axb4 d5) 19. c3 $18 Nc6 20. Nd5 Ne7 {[#]} (20... Rf8 $142 21. Be3 Ne7) 21. Be3 $2 (21. Ndxf6+ $1 $18 {is the precise move to win.} Nxf6 22. g5 Nxh5 23. Qxh5 Nxf5 24. Rxf5) 21... Nxd5 $16 22. exd5 Rf8 23. Be4 Bb6 24. c4 Bc8 25. Rg1 Rb7 26. Rg2 Kh8 27. Qc2 Qe8 28. Ng3 bxc4 (28... Bd7 $16) 29. dxc4 $18 Bd8 (29... Bd7 $16 30. Rb1 Qb8) 30. b4 cxb4 31. axb4 Rxb4 32. c5 Qb5 33. Bd3 (33. cxd6 $6 Bd7 $16) 33... Qb8 34. Ne4 Bc7 35. Rc1 ({Much less strong is} 35. Bxa6 Qa8) ({Don't take} 35. Nxd6 $6 Bxd6 36. cxd6 e4 $16) (35. cxd6 $6 Bb6 $16) ({Better is} 35. Ra4 $18) 35... Bb7 $2 (35... a5 $16 36. cxd6 (36. Nxd6 e4 $14) 36... Bxd6) 36. cxd6 Bb6 37. Bxb6 Rxb6 38. Qc5 Ba8 39. d7 {White is clearly winning.} Rd8 {[#]} 40. Qe7 $1 {And now Rgc2 would win.} Nf8 {[#]} 41. Rc8 $1 {[%mdl 576] Promotion} Rxc8 42. dxc8=Q Qxc8 43. Rc2 {Accuracy: White = 72%, Black = 49%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Korley, Kassa"]
[Black "Colas, Joshua"]
[Result "1-0"]
[ECO "B11"]
[WhiteElo "2430"]
[BlackElo "2319"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,153,0,37,37,52,47,51,56,52,50,50,43,52,43,43,34,41,35,39,39,38,31,47,47,51,43,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,47,0,47,47,58,70,60,47,90,47,65,65,83,65,65,65,65,65,152,152,152,152,156,0,154,153,250,250,250,243,296,143,168,143,172,163,170,162,152,160,244,236,437,418,596,587,521,515,702,682,678,662,660,635,595,569,763,812,872,841,650,644,840,834,826,817,850,700,1661,1538,5089,4687,5210,3817,4134,2287,1658,1390,1605,9339,29951,10731,5089,29963,6087,8672,12819,1979,29977,29978,29976,29978,29981,29982,29982,29983,29984,29984,29986,29987,29987,29988]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d4 Nd7 7. Bd3 {[#] B11: Caro-Kann: Two Knights Variation.} a6 $146 ({Predecessor:} 7... dxe4 8. Nxe4 Ngf6 9. c3 Nxe4 10. Qxe4 Nf6 11. Qe2 Bd6 12. O-O O-O 13. Re1 Re8 14. Qf3 Qa5 15. Bc4 Qf5 16. Qxf5 exf5 17. Rxe8+ Rxe8 18. Bd2 Ne4 19. Re1 {½-½ (66) Dominguez Perez,L (2723)-Mamedyarov,S (2766) Loo 2013}) 8. O-O dxe4 9. Nxe4 {White is slightly better.} Ngf6 10. c3 Nxe4 11. Qxe4 Nf6 12. Qe2 Bd6 13. a4 O-O 14. Bg5 Be7 15. Rfe1 Re8 16. a5 Qd5 17. Bf4 Rad8 18. Bc4 Qd7 19. Qf3 Nd5 20. Be5 Bd6 21. h4 Qe7 22. g3 Bxe5 23. Rxe5 h6 24. Rae1 Rd6 25. Kg2 Nf6 26. R5e2 Nd5 27. Re5 Nf6 28. b4 Nd5 29. Bb3 Red8 30. Qd3 Nf6 31. R5e2 Kf8 32. f4 $36 {[%mdl 2048] Hoping for f5. White is more active.} Qc7 33. f5 exf5 34. Qxf5 Qd7 35. Qd3 Re8 ({Black should try} 35... Rc8 $14) 36. Rxe8+ $16 {[%mdl 64] Overworked Piece} Nxe8 37. Qh7 {[%cal Rh7h8]} Nf6 38. Qh8+ Ng8 39. Rf1 Re6 (39... Rd5 $16) 40. Bxe6 $18 Qxe6 {[%mdl 4096] Endgame KQR-KQN} 41. Qh7 $1 g6 {[#]} 42. Qh8 (42. h5 $1 $18 {[%cal Rh5g6] and the rest is easy. Threatens to win with hxg6.} gxh5 43. Qf5) 42... Qe4+ 43. Rf3 Qe2+ 44. Rf2 Qe4+ 45. Kh2 Qe1 46. Rg2 h5 {[#]} (46... Qxc3 $16 47. Qe5 Qd3) 47. Qe5 $1 {[%cal Re5e1]} Qxe5 $2 (47... Qf1 {keeps fighting.}) 48. dxe5 {KR-KN} Nh6 (48... Ne7 $142 49. Rd2 Ke8) 49. Re2 Ke7 50. Kg2 Nf5 51. Kf3 Ng7 52. Rd2 Ne6 53. Ke4 Nc7 54. c4 Ke8 55. Rg2 Kd7 56. g4 hxg4 57. Rxg4 Ne6 58. Rg1 Ke7 59. Rh1 Ng7 60. b5 cxb5 61. cxb5 axb5 62. Rb1 Kd7 63. Rxb5 Kc7 64. Rc5+ Kd7 65. Rc1 Nf5 66. Rb1 (66. Rd1+ $142 Kc7 67. Rc1+ Kd7 68. Rb1) 66... Kc7 67. Rb6 Ng3+ 68. Kd5 Nh5 69. Kc5 Ng3 70. Rb1 (70. e6 $142 fxe6 71. Rxe6) 70... g5 71. hxg5 {White mates.} Ne4+ 72. Kd4 Nxg5 73. Rc1+ Kd7 74. Kc5 Kc7 75. Kb5+ Kb8 76. Kb6 Ne6 77. Rc4 {Accuracy: White = 91%, Black = 60%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Wang, Kevin"]
[Black "Khamrakulov, Djurabek"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2418"]
[BlackElo "2525"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,57,0,12,5,12,7,13,11,10,-27,-16,-47,0,0,0,0,0,5,5,5,16,17,18,15,17,11,21,17,19,17,19,27,24,28,15,8,5,0,24,21,20,18,22,17,37,15]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 d5 $1 {[%mdl 4] is recently more successful than 6...c4.} 7. exd6 Qxd6 8. Na3 {B22: Sicilian: 2 c3.} a6 9. O-O Bf5 10. d4 {The position is equal.} cxd4 $1 11. cxd4 e6 $1 12. Be3 Be7 13. Ne5 $1 O-O 14. Nac4 Nxc4 15. Nxc4 Qd8 16. d5 Qxd5 17. Qxd5 exd5 18. Nb6 $1 {[%csl LRa8,LRd5][%mdl 64] [#] Double Attack} Rad8 19. Nxd5 Bd6 {[#]} 20. Rad1 $146 ({Predecessor:} 20. Bb6 Rc8 21. Ne3 Be6 22. Bxe6 fxe6 23. Rad1 Bc7 24. Nc4 Rf4 25. b3 Rxc4 26. Bxc7 {½-½ (45) Thalwitzer,D (2093)-Borovikov,V (2532) Germany 2012}) 20... Be6 21. Bb6 {Threatens to win with Ne3.} Rd7 22. f4 Ne7 23. Ba4 {[#] Strongly threatening Nxe7+.} Nc6 24. g3 {Hoping for f5.} Be5 25. Nc3 {Black must now prevent Rxd7.} Bf6 26. Rxd7 Bxd7 27. Rd1 Be6 28. Rd2 Bd8 29. Bxd8 {Not much happened in this game. Accuracy: White = 96%, Black = 94%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Kaliksteyn, Alexander"]
[Black "Yoo, Christopher Woojin"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2394"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,54,-18,-25,-24,-36,-22,-23,-13,-20,-20,-24,-27,-31,-26,-22,-13,-116,-123,-116,-116,-116,-124,-116,-114,-139,-136,-300,-295,-427,-394,-387,-393,-768,-738]} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. Be2 b6 7. O-O Bb7 8. c4 Nbd7 9. Nc3 Ne4 10. Nxe4 Bxe4 11. Qd2 e5 12. Bh2 Qe7 {E61: King's Indian: Early deviations for White, including Smyslov System.} 13. Rfd1 Rad8 14. Rac1 Bb7 {Black has an edge.} 15. b4 Rfe8 16. Qc2 {[#]} Bxf3 $146 ({Predecessor:} 16... c5 17. bxc5 dxc5 18. d5 Nf8 19. e4 Bc8 20. Re1 f5 21. exf5 gxf5 22. Nd2 Ng6 23. Bh5 Qg5 24. Bxg6 Qxg6 {1-0 (62) Lebel,P (2240)-Boyd,S (2265) Hyeres 1992}) 17. Bxf3 exd4 18. exd4 Bxd4 19. Qa4 (19. Rxd4 $2 {[#] is a self mate.} Qe1+ $1 {[%mdl 512]} 20. Rxe1 Rxe1#) (19. Bf4 $11 Bf6 20. Bc6) 19... Ne5 $17 20. Bxe5 ({But not} 20. Rxd4 $2 Nxf3+ 21. gxf3 Qg5+ 22. Kf1 Qxc1+ $19) 20... dxe5 21. Bc6 Rf8 22. b5 e4 23. Bd5 Qe5 {aiming for ...e3.} 24. Re1 $2 {Now White is beyond hope.} (24. Rc2 $17 {might work better.}) 24... Qf4 $19 ({Worse is} 24... Bxf2+ 25. Kxf2 Qd4+ 26. Ke2 $11) 25. Rc2 (25. Qc2 $142 e3 26. fxe3 Bxe3+ {[%mdl 64] Double Attack} 27. Kh1) 25... e3 26. fxe3 Bxe3+ 27. Kh1 $2 {[#]} (27. Rxe3 Qxe3+ 28. Rf2) 27... Rxd5 $1 {[%mdl 576] Pin. Accuracy: White = 41%, Black = 100%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Khamrakulov, Djurabek"]
[Black "Wang, Qibiao"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2525"]
[BlackElo "2362"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,124,25,26,23,10,35,32,33,34,29,27,21,11,31,14,24,6,31,0,0,0,0,-15,0,-12,0,0,0,0,-6,-6,0,0,0,0,30,21,24,28,29,29,29,29,52,54,56,63,51,26,25,25,27,28,28,28,29,29,42,4,4,5,5,5,5,5,11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,88,88,88,88,88,88,88,88,88,88,88,88,88,0,88,88,88,88,88,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bb4 4. Nxe5 O-O 5. Be2 Re8 6. Nd3 Bxc3 7. dxc3 Nxe4 8. O-O d6 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} 9. f3 Nf6 10. Bg5 h6 {White is slightly better.} 11. Bh4 Bf5 {[#]} 12. Qd2 $146 ({Predecessor:} 12. Re1 Nbd7 13. Qd2 c6 14. c4 Qb6+ 15. Bf2 c5 16. b3 Qc6 17. Rad1 Rad8 18. Bg3 {1-0 (48) Jedinger,A (2158)-Mantl,K (1868) ICCF email 2014}) 12... Nbd7 13. Bf2 Ne5 14. b3 a5 15. a4 b6 16. Rad1 (16. Rfe1 {is more complex.} Nxd3 17. cxd3 Qd7 18. d4 c6 19. Bc4) 16... Nxd3 17. Bxd3 Bxd3 18. cxd3 Qd7 19. d4 Qf5 20. c4 Re7 21. Qd3 Qxd3 22. Rxd3 Rae8 23. Rfd1 Nd7 24. Kf1 Nb8 25. c5 d5 26. Rc3 Na6 27. cxb6 cxb6 28. Re1 Rxe1+ 29. Bxe1 $11 {[%mdl 4096] Endgame KRB-KRN} Nb4 30. Bd2 Kf8 31. g4 Re6 32. Rc8+ Ke7 33. Rc7+ Ke8 $1 34. Bxb4 axb4 {KR-KR} 35. Kf2 g5 36. Kg3 Re3 37. Rc6 Rxb3 38. Rxb6 Rb1 39. a5 Ra1 40. Rb5 b3 41. Rxb3 {And now Rb5 would win.} Rxa5 42. Rb6 Ra4 43. Rxh6 Rxd4 44. h4 gxh4+ 45. Kxh4 f5 46. Kh5 fxg4 47. fxg4 Kf7 48. g5 Ra4 49. Rd6 Kg7 50. Rd7+ Kg8 {[#]} (50... Kf8 $11 {keeps the balance.}) 51. Kh6 $1 $16 {Hoping for Rd8+.} ({Of course not} 51. Rxd5 $6 Ra6 $11) 51... Ra6+ 52. g6 {[%cal Rd7d8]} Ra8 53. Rxd5 Rb8 54. Rd7 Ra8 55. Rg7+ Kh8 56. Rf7 Kg8 57. Rg7+ Kh8 58. Re7 Kg8 59. Re6 Rb8 60. g7 ({White should play} 60. Ra6 $16) 60... Ra8 {The position is equal.} 61. Rf6 Rb8 62. Rf8+ Rxf8 {Accuracy: White = 92%, Black = 90%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Niemann, Hans Moke"]
[Black "Kaliksteyn, Alexander"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2459"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,63,13,7,3,14,19,11,13,22,20,24,0,0,-6,0,0,0,0,0,0,0,-18,-16,-16,-22,-22,-20,-31,0,0,0,0,0,0,0,0,0,0,127,139,421,433,461,293,281,262,289,280,619,619,619,619,614,611,718,717]} 1. Nf3 d5 2. b3 c5 3. Bb2 Nc6 4. e3 a6 5. d4 Nf6 6. Be2 {A06: Réti Opening: 1 Nf3 d5.} Bg4 7. Nbd2 e6 8. O-O {The position is equal.} Rc8 9. c4 cxd4 10. exd4 {[#]} dxc4 $146 ({Predecessor:} 10... Be7 11. Ne5 Bxe2 12. Qxe2 O-O 13. Nxc6 bxc6 14. c5 a5 15. a3 Ra8 16. Bc3 Qd7 17. Rfb1 Rfc8 18. Nf3 {0-1 (18) Karlsson,L (2476)-Erdos,V (2576) Sitges 2008}) 11. Nxc4 Be7 12. Ne3 Bh5 13. d5 exd5 14. Nd4 Bg6 15. h4 {With the idea h5.} h6 16. h5 Be4 17. Ndf5 O-O 18. Bf3 Re8 {[#]} (18... d4 $5 19. Bxe4 dxe3 20. Qxd8 Bxd8 $11) 19. Nxg7 $1 {[%mdl 512]} Kxg7 20. Bxe4 dxe4 21. Qg4+ $1 Kf8 22. Qf4 Ng8 {aiming for ...Bg5.} 23. Rad1 Bg5 {[#]} (23... Qc7 $11 {keeps the balance.} 24. Nf5 f6) 24. Nf5 $1 $40 {[%csl Gf5][%cal Rb2g7][%mdl 1664] White has strong compensation. Black is in trouble.} f6 $2 {[%mdl 8192] This costs Black the game.} (24... Bxf4 25. Bg7#) (24... Nf6 $16 25. Rxd8 Bxf4 26. Rxc8 Rxc8 27. Bxf6 Be5) 25. Ba3+ $18 Kf7 26. Nd6+ Kg7 27. Qf5 {Threatening mate with Qg6+.} Nce7 28. Qe6 ({Not} 28. Nxe8+ Qxe8 29. Qxe4 Qc6 $16) ({Don't play} 28. Qxe4 $6 Qd7 $18) 28... Qa5 $2 (28... e3 29. fxe3 (29. f4 Bh4 $18) 29... Qa5) 29. Qf7+ {[%mdl 64] Double Attack. White is clearly winning.} Kh8 {Hoping for ...Rf8.} 30. Nxc8 ({Weaker is} 30. Nxe8 Rxe8 31. Qxe8 Qxa3 $18) 30... Rxc8 31. Bxe7 Qc7 {[#]} 32. Rd8 $1 {[%mdl 512] Accuracy: White = 94%, Black = 58%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Yoo, Christopher Woojin"]
[Black "Paragua, Mark"]
[Result "1-0"]
[ECO "B95"]
[WhiteElo "2430"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,117,32,14,54,41,32,40,145,145,141,133,135,145,127,139,130,141,291,269,289,302,300,307,295,309,301,301,289,296,306,306,383,316,323,304,410,254,314,320,317,177,177,173,182,208,336,327,328,321,340,333,341,316,327,290,349,347,375,367,371,364,364,362,364,355,1349,268,275,271,271,267,263,263,248,241,241,241,233,212,183,67,67,60,67,59,57,0,67,67,67,67,68,64,67,66,68,67,68,71,358,71,29978,29978,29985,29986]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. Qf3 Be7 8. O-O-O {And now e5 would win.} Qa5 {B95: Sicilian Najdorf: 6 Bg5 e6, unusual White 7th moves.} 9. h4 Nbd7 10. Be2 Nc5 (10... Qc7 $14) 11. e5 $1 $16 {[%cal Re5f6][%mdl 64] Decoy} dxe5 {[#]} 12. Nc6 $1 {[%cal Rc6a5][%mdl 576] [#] Double Attack} Qc7 $146 (12... bxc6 13. Qxc6+) ({Predecessor:} 12... bxc6 13. Qxc6+ Ncd7 14. Qxa8 O-O 15. Rxd7 Bxd7 16. Qxa6 Qc7 17. Rd1 Rc8 18. Bxf6 Bxf6 {½-½ (24) Kivioja,E-Bronstein,D Parnu 1971}) 13. Nxe7 Qxe7 14. h5 $36 {[%mdl 2048] Strongly threatening h6. Keeping Black busy.} h6 15. Bh4 e4 (15... Kf8 $16 {was worth a try.} 16. Bg3 Ncd7) 16. Qe3 $18 Bd7 17. b4 Nd3+ 18. cxd3 Qxb4 19. Bxf6 ({Resist} 19. dxe4 $6 Nxe4 20. Qxe4 Qxc3+ 21. Kb1 Bb5 $18) 19... gxf6 20. dxe4 Rc8 21. Rh3 Rg8 22. g4 e5 23. Qd2 Ba4 24. Re1 Kf8 25. Re3 Kg7 26. Qb2 Qa5 27. Kb1 (27. Bd1 $142) 27... Rc6 {Threatens to win with ...Rb6.} 28. Ka1 Rgc8 {[%cal Rc6c3]} 29. Rc1 Qc7 (29... R8c7 $142 30. Qa3 b6) 30. g5 fxg5 31. Bg4 Rb6 32. Qa3 Bd7 33. Bxd7 Qxd7 34. Nd5 {[%cal Bc3d5,Bd5e3,Be3f5][%mdl 32]} Rbc6 35. Rb1 Rc2 36. Rd3 Qe6 37. Ne3 Rxf2 38. Rd6 Rc3 39. Nf5+ Kh7 $2 (39... Qxf5 40. Qxc3 Qxe4) 40. Rxe6 $2 (40. Qa5 Rc5 41. Qa4) 40... Rxa3 {[%csl Ga3][%cal Rf2a2]} 41. Rxh6+ Kg8 {[%csl Ga3][%cal Rf2a2]} 42. Rxb7 {[%cal Rb7b8]} Rfxa2+ 43. Kb1 {[%cal Rb7b8]} Ra1+ 44. Kc2 {[%cal Rb7b8]} R1a2+ {[#]} 45. Rb2 $1 Rxb2+ 46. Kxb2 {[%mdl 4096] Endgame KRN-KR} Ra4 {[#]} 47. Rd6 ({White must play} 47. Ng3 $1 $18) 47... Rxe4 $14 48. Rd8+ Kh7 49. Rd7 Kg8 50. Rd8+ Kh7 51. Rf8 Rf4 52. Rxf7+ Kh8 53. Rf8+ Kh7 54. Rf6 {Hoping for Rh6+.} g4 55. Rh6+ Kg8 56. Rg6+ Kh8 $2 {[%mdl 8192]} (56... Kh7 $16 {might work better.}) 57. Nh6 $2 (57. Ne3 $18 {is more deadly.}) 57... e4 $2 {[%mdl 8192]} (57... g3 $16) 58. Nxg4 Rf5 59. Nf6 {Accuracy: White = 74%, Black = 47%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Wang, Kevin"]
[Black "Korley, Kassa"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2418"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,40,4,19,21,21,14,11,18,20,12,14,3,-7,-12,0,-10,0,-20,-25,-23,16,-14,-18,-21,0,0,0,0,0]} 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. O-O d6 6. c3 O-O 7. h3 {7.Re1 gains popularity.} Bb6 8. Re1 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Ne7 9. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} Ng6 10. Nf1 c6 11. Bb3 Be6 12. Bc2 {[#]} d5 $146 ({Predecessor:} 12... h6 13. Ng3 Bc7 14. Qe2 Re8 15. Be3 d5 16. Red1 Qe7 17. Qe1 Red8 18. Nf5 Qd7 {1-0 (92) Fesselier,C (1416)-Von Jan,L (1285) Oberhof 2013}) 13. exd5 Nxd5 ({Reject} 13... Bxd5 14. Nxe5 Nxe5 15. Rxe5 $14) 14. Ng3 Qc7 15. d4 exd4 $1 16. Nxd4 Bd7 17. Bg5 {The position is equal.} Rae8 18. Qf3 Re5 19. Bd2 Rfe8 20. Ndf5 Rxe1+ {Not much happened in this game. Accuracy: White = 92%, Black = 92%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Colas, Joshua"]
[Black "Perunovic, Milos"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2319"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,0,-1,0,-6,0,17,0,7,4,4,-11,-7,0,0,-25,-25,-25,-5,-8,-4,-24,-16,-52,-46,-87,-89,-82,-82,-130,-130,-116,-128,-118,-120,-195,-195,-225,-227,-404,-398,-404,-402,-418,-400,-606,-575,-852,-854,-839,-843,-833,-807,-29994]} 1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. Bg2 cxd4 5. O-O d5 6. Nxd4 e5 7. Nb3 Be6 8. c4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Nc6 {[%cal Bb8c6,Bc6d8,Bd8e6][%mdl 32]} ({Wrong is} 8... dxc4 $2 9. Qxd8+ (9. Bxb7 Nbd7 $14) 9... Kxd8 10. Bxb7 $18) 9. cxd5 Bxd5 10. Nc3 {[%cal Rc3d5] The position is equal.} Bxg2 11. Kxg2 Bb4 12. Bg5 (12. Qxd8+ {is interesting.} Rxd8 13. Nb5 a6 14. Na3 O-O 15. Bg5) 12... Bxc3 13. Qxd8+ Nxd8 {[#]} 14. Bxf6 $146 (14. bxc3 {with more complications.} Ne4 15. Be3 Nc6 16. Rfc1 O-O-O 17. c4) ({Predecessor:} 14. bxc3 Ne4 15. Bc1 Ne6 16. c4 Rc8 17. Ba3 Rxc4 18. Rac1 Rxc1 19. Rxc1 Kd7 20. f3 {0-1 (87) Gislason,G (2346)-Navara,D (2700) Reykjavik 2012}) 14... gxf6 15. bxc3 Rc8 16. Rac1 Ne6 17. Rfd1 Ke7 18. e4 Rc4 19. f3 Rhc8 20. Rd3 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 21. Nd2 Ra4 {aiming for ...b4.} 22. Rc2 {[#]} Rd4 $1 {[%cal Rd4d3][%mdl 512]} 23. Re3 (23. cxd4 Rxc2) 23... b4 $1 24. c4 {[#]} (24. Kf2 $17 {keeps fighting.}) 24... a5 $1 $19 25. a3 {[#]} Rcd8 $1 26. Nb3 $2 (26. Nf1 Nc5 27. axb4 axb4 28. Rc1) 26... Rd3 27. Rxd3 Rxd3 28. Nxa5 {KRN-KRN} Nd4 29. Rb2 (29. Nc6+ $142 Nxc6 30. axb4) 29... bxa3 {Black is clearly winning.} 30. Rb7+ Kf8 31. Ra7 Rd2+ 32. Kh3 a2 33. c5 {Accuracy: White = 46%, Black = 100%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Perunovic, Milos"]
[Black "Wang, Kevin"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2591"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,107,28,43,25,22,29,44,43,41,27,42,31,50,52,42,19,41,59,65,62,69,66,66,68,75,75,86,77,93,101,122,122,120,137,182,178,179,184,185,179,147,131,220,202,303,290,273,276,271,273,295,291,280,236,242,258,218,121,118,88,108,86,113,121,109,12,12,11,12,11,12,33,27,32,23,26,48,37,47,62,220,218,181,141,604,604,2320,1778,540,539,29978,29979,29967,29942]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 cxd4 7. Nxd4 Ne7 8. O-O $1 {[%mdl 4] now scores much better than the old 8.Nd2. Played by Viswanathan Anand in January 2020.} Nbc6 9. Bb5 {B12: Caro-Kann: Advance Variation.} a6 10. Bxc6+ (10. Nxf5 Nxf5 11. Bxc6+ bxc6 $15) 10... Nxc6 11. Nxf5 {White is slightly better.} exf5 12. f4 Be7 {[#]} 13. Bf2 $146 ({Predecessor:} 13. Nd2 d4 14. Bf2 Qd5 15. Nb3 Rd8 16. Qd3 Qe4 17. Rad1 Qxf4 18. Bxd4 Qe4 19. Rxf5 Qxd3 20. Rxd3 {0-1 (81) Warakomska,A (2273)-Socko,M (2481) Poland 2017}) 13... Qd7 14. Nd2 O-O 15. Nf3 Rad8 16. c3 Qc7 17. Qb3 b5 18. Rad1 Na5 19. Qc2 g6 20. Rd3 Rd7 21. Rfd1 Rfd8 22. Qe2 Bc5 23. Kh1 Bxf2 24. Qxf2 Nb7 25. Ng5 {[%cal Bf3g5,Bg5h7,Bh7f6][%mdl 32]} Nc5 26. Nxh7 $1 Nxd3 27. Rxd3 (27. Nf6+ Kg7 $14) 27... Qc4 (27... Kxh7 28. Qh4+ Kg8 29. Rh3 Qxe5 30. fxe5 f6 31. Qh8+ Kf7 32. Qxf6+ Kg8 33. Rh8#) 28. Nf6+ Kf8 (28... Kg7 $16 29. Rh3 d4) 29. Rh3 $18 {And now b3 would win.} (29. Nxd7+ Rxd7 30. Rd1 Qxa2 $16) 29... d4 (29... Rb7 $142 30. b3 Qc8 31. Rh8+ (31. Qh4 Qc6 $18) 31... Ke7) 30. b3 Qc6 31. Nxd7+ Rxd7 {[%mdl 4096] Endgame KQR-KQR} 32. Rh8+ ({Not} 32. cxd4 Qc1+ 33. Qg1 Qd2 $11) 32... Ke7 33. Qh4+ ({And not} 33. cxd4 Qc1+ 34. Qg1 Qxf4 $15) 33... Ke6 34. Re8+ $1 Kd5 35. e6 $1 {[%cal Re6d7]} fxe6 36. Qf6 (36. Qe1 $1 $18 {[%csl Gf4][%cal Re1e5]} Qd6 37. cxd4) 36... Qd6 $16 {Strongly threatening ...d3.} 37. Qxd4+ Kc6 38. Qg1 Kb7 39. h3 Qc6 {Hoping for ...Rh7.} 40. Qe1 (40. Kh2 $16) 40... Rh7 $11 41. Qxe6 ({Avoid the trap} 41. Rxe6 $2 Rxh3+ 42. Kg1 Qc5+ 43. Qf2 Rh1+ $1 {[%mdl 512]} 44. Kxh1 Qxf2 $19) 41... Rxh3+ $1 {[%mdl 64] Double Attack} 42. Kg1 Qxe6 $1 43. Rxe6 Rxc3 44. Rxg6 {KR-KR} Rc1+ 45. Kh2 Ra1 46. Rf6 Rxa2 47. Rxf5 Rb2 $2 (47... Rf2 $1 $14) 48. Re5 $1 $18 Rxb3 49. f5 {f6 is the strong threat.} Rb1 $2 {[%mdl 8192] [#] Now Black is done in.} (49... Rb2 $16) 50. g4 $1 {aiming for f6.} b4 51. g5 b3 {[#]} 52. Re3 $1 b2 {Threatens to win with ...Rh1+!} 53. Rb3+ Kc6 54. g6 {Accuracy: White = 91%, Black = 62%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Paragua, Mark"]
[Black "Niemann, Hans Moke"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2513"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,55,13,31,20,30,-4,0,14,0,-38,-43,-36,-20,-41,-20,-52,35,37,85,88,97,101,112,109,94,131,109,114,112,106,156,180,157,-326,26,35,29985,29986,29986,29987,29985,29986,29986,29977,1195,1176,1031,1003]} 1. e4 e5 2. Nc3 Nf6 3. g3 c6 4. d4 exd4 5. Qxd4 d5 6. Bg5 {e5 is the strong threat. C26: Vienna Game: 2...Nf6, sidelines .} Be7 7. O-O-O {[%cal Re4d5]} (7. exd5 {keeps more tension.} cxd5 8. O-O-O O-O 9. Nge2 Nc6 10. Qa4) 7... h6 8. Bxf6 {The position is equal.} Bxf6 9. e5 Be7 10. Bh3 {[#]} b5 $146 ({Predecessor:} 10... Na6 11. f4 Bc5 12. Qd3 Bxh3 13. Nxh3 Qa5 14. a3 b5 15. Ne4 dxe4 16. Qd7+ Kf8 17. Qxc6 {0-1 (41) Comas Fabrego,L (2495)-Howell,D (2561) La Massana 2008}) 11. f4 O-O 12. f5 f6 (12... Nd7 $15 13. Nf3 Nb6) 13. e6 $36 {[%mdl 2048] White is more active.} Qa5 14. Kb1 Bb7 15. Bg2 b4 16. Nce2 {[%cal Bc3e2,Be2f4,Bf4h5][%mdl 32]} c5 17. Qg4 Nc6 {[%cal Bb8c6,Bc6e5,Be5c4][%mdl 32]} 18. Nf4 {Strongly threatening Nh5.} (18. Rxd5 $2 Ne5 $17) 18... Ne5 19. Qh5 Rad8 {White should prevent ...c4.} 20. Nf3 (20. Nxd5 Bxd5 21. Bxd5 c4 $17) 20... Nc4 {[#]} 21. Rhe1 $2 {[#]} (21. Qg6 $1 $16 {[%mdl 512]} Qc7 22. Rhe1 (22. Nh5 Bd6 $16)) 21... d4 $2 {[#]} ({Black should play} 21... Rd6 $1 $19 {[%cal Rd6a6] And now ...Ra6 would win.} 22. Nd2 (22. Ng6 Ra6 $19) 22... Nxd2+ 23. Rxd2 b3 24. axb3 Qxd2) 22. Qg6 $1 $11 {[%mdl 512] Intending Nh5 and mate.} Kh8 $2 {[%mdl 8192]} (22... Bxf3 $14 23. Bxf3 Kh8) 23. Nh5 {[%csl Gh5][%cal Rg6g7]} Rg8 24. Ng5 $1 fxg5 {[#]} 25. f6 $1 {[%mdl 512]} Bf8 26. f7 Be7 27. fxg8=Q+ Rxg8 28. Bxb7 {Accuracy: White = 78%, Black = 56%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Korley, Kassa"]
[Black "Khamrakulov, Djurabek"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2430"]
[BlackElo "2525"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,53,43,51,50,56,50,49,34,34,34,43,33,49,16,25,27,35,24,33,14,36,25,54,51,41,41,42,42,72,72,47,63,52,38,37,16,35,28,74,46,38,0,64,0,35,0]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 g6 6. Bc4 {B01: Scandinavian Defence.} Bg7 7. O-O O-O 8. h3 a6 9. a4 b6 10. Qe2 Bb7 11. Bf4 e6 12. Rfe1 Nc6 {[%cal Bb8c6,Bc6b4,Bb4d5,Bd5f4][%mdl 32]} 13. Rad1 Re8 {[#]} 14. Bh2 $146 ({Predecessor:} 14. Bg5 Ne7 15. Ne5 Ned5 16. Nxd5 exd5 17. Bd3 Qd6 18. Qf3 c5 19. c3 cxd4 20. cxd4 Re6 21. Qf4 Rae8 22. Re3 Qb4 23. Rde1 Bc8 24. h4 Qf8 25. Qf3 Nd7 {1-0 (25) Antipov,M (2567)-Skvortsov,A (2139) Sochi 2019}) 14... Nb4 15. Bb3 Qd7 16. Ne5 Qe7 17. Nb1 {[%cal Bc3b1,Bb1d2,Bd2f3][%mdl 32]} Rad8 18. c3 Nbd5 19. Bc4 Ra8 20. Nd2 Bh6 21. Ndf3 Nf4 22. Qc2 N6h5 23. Bf1 Bg7 24. Re3 Nd5 25. Ree1 Ndf4 26. Re3 Nd5 27. Ree1 {Accuracy: White = 81%, Black = 89%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Kaliksteyn, Alexander"]
[Black "Colas, Joshua"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2394"]
[BlackElo "2319"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,77,1,12,15,21,13,13,16,24,11,1,0,0,-10,0,0,0,0,0,0,0,0,0,-4,0,0,0,0,0,0,0,0,0,0,0,0,9,0,15,10,4,13,88,85,89,89,100,97,102,71,50,50,64,24,60,0,60,8,22,0,0,2,69,0,133,133,856,850]} 1. d4 Nf6 2. Bf4 e6 3. Nf3 c5 4. e3 Nc6 5. Nbd2 d5 6. c3 cxd4 7. exd4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Nh5 8. Be3 Bd6 9. Ne5 {The position is equal.} g6 10. Nd3 O-O 11. Be2 Ng7 12. f4 {[#]} Nf5 $146 ({Predecessor:} 12... f6 13. Nf3 Nf5 14. Bf2 h5 15. h3 Qc7 16. g4 hxg4 17. hxg4 Ng7 18. Qc2 Ne7 {1-0 (26) Prie,E (2480)-Saucey,M (2283) Nimes 2018}) 13. Bf2 Qc7 14. g4 Ng7 15. Bg3 f6 16. O-O b6 17. Rf2 Bb7 18. Qf1 e5 19. fxe5 fxe5 20. dxe5 Nxe5 21. Bxe5 Bxe5 22. Nxe5 Qxe5 23. Re1 Qg5 24. Bf3 Rf7 25. Qg2 Raf8 26. Nb3 h6 (26... Kh8 $11) 27. Nd4 $16 Kh7 28. Rfe2 Rf4 29. Qg3 Bc8 {[%cal Rc8g4]} 30. Re5 Qf6 31. Re7 {Black must now prevent Rc7.} (31. Rxd5 Bxg4 32. Bg2 Nh5 $17) 31... Kh8 32. h3 h5 (32... Rxf3 33. Nxf3 (33. Qxf3 Qxd4+ 34. cxd4 Rxf3 $16) 33... Qxf3 34. Qxf3 $16) 33. a3 (33. Kg2 $1 $14) 33... a5 ({Of course not} 33... Rxf3 $6 34. Nxf3 Qxf3 35. Qxf3 $16) (33... hxg4 $11 34. hxg4 Bxg4) 34. R7e3 ({And not} 34. Bxd5 hxg4 35. Qe3 gxh3 $17) (34. Kg2 $1 $14) 34... b5 $11 35. b4 axb4 36. axb4 Bd7 ({Black should try} 36... Ne6 $1 $11 37. Nxe6 Bxe6) 37. Re7 (37. Kh2 $14) 37... Qd6 (37... hxg4 $11 38. hxg4 Bxg4 39. Bxg4 Qg5) 38. Kg2 $16 Re8 $2 {[%mdl 8192] [#]} (38... g5 $16 39. gxh5 Nf5 40. Nxf5 R8xf5) 39. Rxd7 $1 {[%mdl 512] Accuracy: White = 83%, Black = 73%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Wang, Qibiao"]
[Black "Yoo, Christopher Woojin"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2362"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,0,0,14,28,-86,-76,-85,-79,-93,-96,-104,-80,-94,-93,-139,-127,-227,-216,-214,-194,-233,-81,-90,-41,-55,-60,-64,0,-92,0,2,11,-1,7,0,0,0,0,0,0,0,0,0,0,0,0,-20,29,17,59,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 Bg7 5. h4 O-O 6. h5 {A45: Trompowsky Attack.} c5 7. Nb5 {[#]} (7. hxg6 $11 hxg6 8. Nge2 (8. dxc5 Qa5 $11)) 7... cxd4 $146 ({Predecessor:} 7... Nc6 8. Nc7 e5 9. dxe5 Qxc7 10. exf6 Qa5+ 11. c3 Bxf6 12. Bd3 g5 13. Bg3 d4 {0-1 (25) Kahn,T (1921)-Stoyanov,V (2198) Torquay 2019}) 8. exd4 {Black is better.} Nc6 ({Avoid the trap} 8... gxh5 $2 9. Nc7 $18) 9. hxg6 fxg6 10. Nf3 Ne4 11. Bc7 Qd7 12. Bh2 a6 13. Nc7 {[#]} (13. Nc3 $17 {was worth a try.}) 13... Ra7 $1 $19 14. c4 {[#]} Nxd4 $1 {[%mdl 512]} 15. Nxd5 (15. Nxd4 Nxf2) 15... Nxf3+ $2 (15... e6 $19 {is more deadly.} 16. Ne5 Bxe5 17. Bxe5 Nc6) 16. gxf3 $17 Nc5 17. Qe2 e6 18. Bh3 {Threatens to win with Bb8.} b5 (18... Na4 $1 $15 19. Be5 b5) 19. Rd1 {[#]} (19. Nb6 $1 $11 {remains equal.} Qd3 20. Nxc8 Qxe2+ 21. Kxe2 Rxc8 22. cxb5 axb5 23. Rhc1) 19... Qe8 ({Better is} 19... Qf7 $1 $17 20. Ne3 e5 21. Bxc8 Rxc8 22. cxb5 axb5 23. Qxb5 Qxf3 24. Qc4+ Qf7) 20. Nb6 $11 Bb7 21. Bg2 e5 22. Qe3 Ne6 {...Nd4 is the strong threat.} 23. Rd7 $1 Rf7 24. Rxf7 Qxf7 25. Bxe5 Bc6 26. O-O Bxe5 27. Qxe5 Nf4 $1 {Hoping for ...Re7.} 28. Qd6 Qc7 (28... Rc7 {looks sharper.} 29. cxb5 axb5 30. Re1 Nxg2 31. Re6 Qf4) 29. Rd1 Nxg2 30. Qxc7 ({White should play} 30. Qe6+ $14 Kg7 31. Rd6 (31. Kxg2 Qxb6 32. Rd6 Rc7 $11)) 30... Rxc7 {The position is equal.} 31. Kxg2 bxc4 32. Nxc4 (32. Rd6 {is interesting.} Be8 33. Nd5 Rb7 34. Nb6 Bf7 35. a3) 32... Bxf3+ 33. Kxf3 {And now b3 would win.} Rxc4 {[%mdl 4096] Endgame KR-KR} 34. Rd8+ Kg7 35. Rd7+ Kh6 36. Ra7 Rc2 37. Rxa6 {aiming for Rb6.} Rxb2 38. a4 Ra2 39. Ra8 Kg5 40. Kg3 Ra3+ 41. f3 {Accuracy: White = 79%, Black = 77%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Khamrakulov, Djurabek"]
[Black "Yoo, Christopher Woojin"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2525"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,107,20,18,3,7,10,8,12,6,14,6,22,0,0,0,20,20,25,26,15,24,20,13,19,22,25,13,14,10,7,10,62,61,60,65,44,52,55,47,61,62,119,98,141,61,82,59,71,54,65,17,86,46,46,46,46,46,50,51,54,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 d6 5. d4 cxd4 6. cxd4 Nc6 7. Bc4 Nb6 8. Bb5 Bd7 9. Nc3 dxe5 {B22: Sicilian: 2 c3.} 10. dxe5 g6 11. O-O Bg7 12. Qe2 O-O 13. Rd1 Qc7 14. Be3 Bg4 15. Bxb6 {[#]} axb6 $146 ({Predecessor:} 15... Qxb6 16. Nd5 Bxf3 17. gxf3 Nd4 18. Nxb6 Nxe2+ 19. Bxe2 axb6 20. Rd7 Bxe5 21. Bc4 Bxb2 {0-1 (46) Nuri,K (2300)-Gaponenko,I (2381) Doha 2014}) 16. Nd5 Qxe5 17. Nxe5 Bxe2 18. Bxe2 Bxe5 19. Nxb6 Ra5 ({Much weaker is} 19... Bxb2 $6 20. Rab1 $16) 20. Nc4 Rc5 21. Rab1 Nd4 22. Bf1 Bg7 23. b4 Rd5 ({Black should play} 23... Rc7 $11) 24. a4 $14 Rfd8 {[#] aiming for ...Nf3+!} 25. Ne3 $36 {[%mdl 2048] White is more active.} R5d7 26. a5 Bh6 {Threatens to win with ...Bxe3.} 27. Re1 Bxe3 28. fxe3 Nc6 (28... Nc2 $14) 29. Rec1 $16 Rd6 {[#]} 30. Bb5 ({Better is} 30. g3 $1 $16) 30... Re6 31. Rb3 h5 32. h3 Kg7 33. Rc5 h4 (33... Rd1+ $11 {keeps the balance.} 34. Kh2 Nd8) 34. a6 Na7 35. Bc4 Rb6 36. Rc7 Rc6 37. Rxc6 bxc6 $14 {[%mdl 4096] Endgame KRB-KRN} 38. Kf2 (38. Bd3 $14) 38... Rd2+ $11 {The position is equal.} 39. Kf3 Rc2 $1 {[%cal Rc2c4]} 40. Bd3 Ra2 41. Ke4 Nb5 $1 42. Bxb5 $1 cxb5 {KR-KR} 43. Kd5 Rxa6 44. Kc5 Ra2 45. Kxb5 {Hoping for Kc6.} Rxg2 46. Kc6 {b5 is the strong threat.} g5 47. b5 {And now b6 would win.} g4 48. hxg4 h3 49. e4 h2 50. Rh3 Rc2+ 51. Kd7 Rb2 52. Kc6 Rc2+ 53. Kd7 Rb2 54. Kc6 $1 {Accuracy: White = 90%, Black = 88%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Niemann, Hans Moke"]
[Black "Wang, Qibiao"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "2459"]
[BlackElo "2362"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,92,26,26,26,27,26,20,30,28,83,69,86,68,85,51,50,37,47,47,41,37,41,33,47,0,0,-37,-32,-79,-79,-77,-87,-94,-60,-64,-67,-53,-40,-38,-27,-87,-38,-33,-35,-31,-20,-16,-8,-80,-77,-185,-187,-158,-164,-227,-222,-314,-300,-329,-128,-102,-76,-70,-25,-262,-262,-596,-594,-543,-561,-6087,-6087,-6087,-5310,-29979,-29980]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 Bg6 8. Bxf6 Qxf6 9. Qxf6 gxf6 10. h4 h5 {D35: Queen's Gambit Declined: Exchange Variation.} 11. Nh3 Nd7 12. Kd2 Nb6 {[#] The position is equal.} 13. Bd3 $146 ({Predecessor:} 13. Nf4 Bh6 14. g3 Bxf4 15. gxf4 Nc8 16. f3 Nd6 17. Re1 O-O-O 18. b3 Kc7 19. Bh3 {½-½ (38) Bitalzadeh,A (2310)-Collins,S (2412) Liverpool 2008}) 13... f5 (13... Bd6 $11) 14. Ne2 Nc8 15. Nhf4 Nd6 16. f3 Kd7 17. b3 Bh6 18. Ng3 Rae8 19. Rae1 Bg7 20. Bc2 Bf6 21. Nge2 Bd8 22. Nd3 Ba5+ 23. Nc3 {[#]} f4 $1 {[%cal Rf4e3][%mdl 512]} 24. exf4 (24. Nxf4 Nb5) 24... Rxe1 25. Rxe1 Bxd3 26. Bxd3 c5 27. dxc5 d4 {[%mdl 64] Pin} 28. Re5 {aiming for c6+!} Bxc3+ 29. Ke2 (29. Kc2 $11) 29... Nc8 30. Bf5+ Kc7 31. Kd3 b6 32. g4 f6 33. Re6 (33. Rd5 $1 $11) 33... bxc5 $17 {Hoping for ...hxg4.} 34. Rxf6 (34. g5 $17) 34... Nd6 $19 35. g5 Be1 36. Be6 (36. Rh6 $142 Rxh6 37. gxh6) 36... Bxh4 37. Rg6 {[#]} (37. b4 $142 cxb4 38. Bb3) 37... Rf8 $1 38. Bd5 Nf5 $2 ({Don't play} 38... Rxf4 39. Rg7+ Kd8 40. g6 $19) (38... Rf5 $19 {is more deadly.} 39. Rg7+ Kb6) 39. Rc6+ $17 Kd7 {Threatens to win with ...Ne7.} 40. Ra6 Bg3 (40... Ne7 $5 {[%cal Re7d5]} 41. Bc4 Kd8 42. Rxa7 Nc6 43. Ra8+ Ke7 44. Rxf8 Kxf8 $17) 41. Be6+ $2 {This move loses the game for White.} (41. g6 $1 $11) 41... Ke7 $19 42. Ke4 $2 (42. Bc4 {is tougher.} Bxf4 43. Rxa7+ Kd6 44. Ra6+ Kc7 45. Ra7+ Kd6 46. Ra6+ Kc7 47. Ra7+ Kb6 48. Ra6+ Kb7 49. Rf6 Rxf6 50. gxf6) 42... Nd6+ 43. Kd5 Nb5 {Strongly threatening ...d3.} 44. Rc6 d3 45. f5 Nc7+ 46. Kxc5 d2 {Accuracy: White = 45%, Black = 83%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Korley, Kassa"]
[Black "Perunovic, Milos"]
[Result "1/2-1/2"]
[ECO "B80"]
[WhiteElo "2430"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,57,35,33,28,33,16,14,8,9,12,14,5,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 a6 7. Bg2 d6 8. O-O Bd7 9. b3 Nf6 10. Bb2 Be7 11. Nce2 O-O 12. c4 Rac8 13. Rc1 {B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack.} Qb8 14. Qd2 Nxd4 {The position is equal.} 15. Nxd4 b5 16. cxb5 axb5 17. a3 {[#]} g6 $146 ({Predecessor:} 17... Rxc1 18. Rxc1 Rc8 19. Rxc8+ Qxc8 20. Nc2 e5 21. Ne3 Qc5 22. Qc3 Qxc3 23. Bxc3 Kf8 {½-½ (43) Huebner,R (2612)-Charnushevich,A (2524) Switzerland 2011}) 18. b4 e5 {[#] aiming for ...Rxc1.} 19. Ne2 h5 20. Rxc8 Rxc8 21. Rc1 Rxc1+ 22. Bxc1 Bd8 23. h3 Bb6 24. Qd3 Bc6 25. Nc3 Bd4 26. Ne2 Bb6 27. Nc3 Bd4 28. Ne2 Bb6 29. Nc3 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Wang, Kevin"]
[Black "Kaliksteyn, Alexander"]
[Result "0-1"]
[ECO "A84"]
[WhiteElo "2418"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,58,18,25,27,22,14,21,10,8,6,14,14,16,0,13,0,15,0,0,0,0,-37,-36,-21,0,0,10,0,0,-47,-47,-161,-161,-180,-181,-175,-179,-445,-438,-404,-395,-389,-398,-391,-341]} 1. d4 d5 2. c4 e6 3. Nf3 c6 4. e3 f5 5. Be2 Nf6 6. O-O Bd6 7. b3 Qe7 8. Bb2 O-O 9. Ne5 {A84: Dutch Defence: 2 c4 Miscellaneous.} b6 10. Nd2 {[%cal Bb1d2,Bd2f3,Bf3g5][%mdl 32]} Bb7 11. a4 {The position is equal.} a5 {[#]} 12. Rc1 $146 ({Predecessor:} 12. Ndf3 Nbd7 13. Nxd7 Nxd7 14. Ne5 c5 15. Nxd7 Qxd7 16. Qd2 Rfd8 17. Rfd1 Rac8 18. Bf3 dxc4 19. dxc5 Bxf3 20. gxf3 Bxh2+ 21. Kxh2 Qxd2 22. Rxd2 Rxd2 {0-1 (27) Shkuro,A (2071)-Galimzianova,A (1908) Kazan 2010}) 12... Na6 {[%cal Bb8a6,Ba6b4,Bb4a2][%mdl 32]} 13. cxd5 cxd5 14. Bb5 Rac8 15. Ndf3 Nb4 16. Qe2 Na2 17. Rxc8 Rxc8 18. Ba6 Bxa6 19. Qxa6 {[%mdl 64] [#] Double Attack} Qc7 20. Ng5 Re8 21. Qb5 h6 22. Ngf7 Bf8 23. g3 ({White must play} 23. Qe2 $1 $15) 23... Re7 $19 24. Nd8 Qxd8 25. Nc6 Qc7 {[#] Strongly threatening ...Re8.} 26. Ra1 $2 (26. Nxe7+ Bxe7 27. Qe2) 26... Re8 ({Weaker is} 26... Nb4 27. Nxe7+ Bxe7 28. Rc1 $17) 27. Rxa2 Rc8 {Black is winning.} 28. Ne5 Qc2 {Hoping for ...Qb1+.} 29. Qxb6 Re8 {Accuracy: White = 64%, Black = 100%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Colas, Joshua"]
[Black "Paragua, Mark"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2319"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,6,19,4,17,13,26,31,24,28,24,0,27,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-52,-43,-57,-52,-149,-170,-150,-126,-128,-75,-84,-75,-75,-75,-66,-72,-85,-75,-108,-108,-143,-131,-152,-43,-49,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-853,-836,-837,0,-752,-645,-1090,-1069,-1674,-1407,-12842,-12843,-12845,-12846]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. a4 Ngf6 5. Nc3 e6 6. O-O {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} Be7 7. a5 a6 8. Be2 {White has an edge.} O-O 9. d4 cxd4 {[#]} 10. Nxd4 $146 ({Predecessor:} 10. Qxd4 Qc7 11. h3 Ne5 12. Be3 Bd7 13. Rfd1 Rac8 14. Nd2 Bc6 15. f3 Rfd8 16. Nc4 Nxc4 17. Qxc4 {0-1 (23) Pniaczek,M (2226)-Niekras,D (2296) Jastrzebia Gora 2019}) 10... Qc7 11. Be3 Nc5 12. f3 Rd8 13. Qe1 d5 $1 14. exd5 exd5 15. b4 Ne6 16. Nxe6 Bxe6 17. Bb6 Qf4 18. g3 Qxb4 19. Bxd8 Qc5+ 20. Qf2 Rxd8 21. Qxc5 Bxc5+ 22. Kg2 ({Better is} 22. Kh1 $11) 22... Bd4 $1 $36 {[%cal Rd4c3][%mdl 2048] Black fights for an advantage.} 23. Ra3 Rc8 24. Nb1 (24. Na2 $15) 24... Rxc2 $17 25. Re1 g5 26. Rd3 Bc5 ({Black should play} 26... Be5 27. Rd2 Rc5 28. Bxa6 Bc7 29. Bxb7 Bxa5 30. Rxe6 fxe6) 27. Rc3 Rxc3 28. Nxc3 {next Rb1 is good for White.} Bb4 {[%mdl 64] Double Attack} 29. Rc1 Bxa5 30. Na4 Nd7 $1 31. Rc8+ Kg7 32. Ra8 d4 33. Ra7 {[#]} Bb3 (33... g4 $1 $17 34. Rxb7 (34. fxg4 Ne5) 34... Ne5) 34. Nb2 $15 Nc5 {...Bc2 is the strong threat.} 35. Nd3 Nxd3 36. Bxd3 $11 {[%mdl 4096] Endgame KRB-KB} Bd5 37. Be4 $1 {[%cal Re4d5]} Bb6 {Threatens to win with ...Bxe4.} 38. Ra8 $1 Bxe4 39. fxe4 {KR-KB} Bc5 (39... d3 $5 40. Kf1 $8 Bc5 $11) 40. g4 Kf6 41. Kf3 Ke6 42. Re8+ Kd7 43. Re5 {[%mdl 64] Double Attack} Kc6 44. Ke2 a5 45. Rxg5 $2 {[%mdl 8192]} (45. Rf5 $11) 45... a4 $19 46. Kd3 a3 $2 (46... Kb5 $1 $19 {aiming for ...a3.} 47. Rf5 a3) 47. Rf5 $2 {[%mdl 8192]} (47. Kc2 $11) 47... Kb5 $1 {[%cal Rb5b4] Black is clearly winning.} 48. Rxf7 {[#]} Ka4 $1 49. Kc2 {[#]} d3+ $1 {[%mdl 512]} 50. Kb1 {[#]} (50. Kxd3 a2) 50... Kb3 $1 {( -> ...a2+)} 51. Rxb7+ Bb4 {Accuracy: White = 68%, Black = 87%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Perunovic, Milos"]
[Black "Khamrakulov, Djurabek"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2591"]
[BlackElo "2525"]
[Annotator "TA"]
[PlyCount "20"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,20,26,31,22,24,13,21,9,28,18,38,21,31]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. c3 {B12: Caro-Kann: Advance Variation.} h6 7. Na3 {[%cal Bb1a3,Ba3c2,Bc2e1][%mdl 32]} Nd7 8. Nc2 Qc7 9. O-O Bh7 {[#]} 10. Nce1 $146 ({Predecessor:} 10. Nfe1 c5 11. Bd3 Bxd3 12. Nxd3 Rc8 13. f4 g6 14. dxc5 Nxc5 15. Nxc5 Qxc5+ 16. Be3 {½-½ (26) Turkov,V (2550)-Napalkov,V (2506) ICCF email 2013}) 10... c5 {Not much happened in this game.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Paragua, Mark"]
[Black "Wang, Kevin"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2513"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,69,16,18,4,8,0,14,0,9,0,7,-47,-52,-69,0,0,-8,-10,-1,-47,-9,-16,0,-29,-33,-31,-26,-15,-16,-41,-11,-10,-20,-17,-30,-25,-28,-29,-36,-40,0,0,0,0,0,0,0,0,30,30,133,131,178,168,339,344,400,274]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O c6 6. b3 O-O 7. Nbd2 a5 8. e3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 9. c4 a4 10. Ba3 {The position is equal.} Nbd7 11. Qe2 Re8 {[#]} 12. Nh4 $1 $146 {[%mdl 8] A relevant novelty.} (12. Bb2 $11) ({Predecessor:} 12. cxd5 Nxd5 13. e4 Nc3 14. Qd3 Nb5 15. exf5 Nxa3 16. bxa4 Rxa4 17. Qb3 Ra7 18. Ng5 {0-1 (37) Caruana,F (2818)-Vachier Lagrave,M (2778) Saint Louis 2019}) 12... Bg4 $15 13. f3 Be6 ({Black should try} 13... Bh5 $15) 14. f4 $11 Bg4 15. Qd3 e6 16. cxd5 cxd5 17. Rfc1 Qb6 18. Bf1 axb3 19. Qxb3 Bf5 20. Qxb6 Nxb6 21. Bc5 Nbd7 22. Bb4 Rec8 23. Nxf5 gxf5 24. Rxc8+ Rxc8 25. Nf3 Bf8 26. Be1 Ba3 27. Rb1 b6 28. Bd3 Ne4 29. Kf1 Kf8 30. Rb3 Bd6 31. Ne5 $36 {[%mdl 2048] White is pushing.} Ndf6 (31... Bxe5 $11 {keeps the balance.} 32. fxe5 f6) 32. Rxb6 $16 Rc1 {[#]} 33. Ke2 $1 Ra1 $2 (33... Ke8 34. h3 Ra1) 34. Bb1 $18 Kg7 35. Rb7 {Accuracy: White = 85%, Black = 59%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Yoo, Christopher Woojin"]
[Black "Niemann, Hans Moke"]
[Result "0-1"]
[ECO "C79"]
[WhiteElo "2430"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,44,38,45,47,50,29,40,87,90,121,23,36,9,19,-25,-25,-112,-105,-97,-105,-92,-115,-594,-398,-370,-304,-29991,-29992,-29992,-29993,-29993,-29994]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d4 exd4 5. O-O a6 6. Ba4 d6 7. Bxc6+ bxc6 8. Nxd4 {8.Nxd4 scores better than 8.Qxd4.} Bd7 {C79: Ruy Lopez: Steinitz-type lines with 3...a6 4 Ba4 Nf6 5 0-0 d6.} 9. Qf3 c5 10. Nf5 {[#]} h6 $146 {[#]White is slightly better.} ({Predecessor:} 10... Bxf5 11. exf5 Rb8 12. g4 h6 13. h4 Be7 14. g5 hxg5 15. hxg5 Nh7 16. Re1 O-O {1-0 (42) Karjakin,S (2725)-Aronian,L (2782) Nice 2010}) 11. Re1 $1 {e5 is the strong threat.} Bc6 {[#]} 12. Qc3 (12. Qd3 $1 $16 {And now e5 would win.} Qd7 13. Nc3) 12... Qd7 $1 $11 13. f3 {Threatening Bxh6!} O-O-O $1 {[%cal Ba8d8,Bd8g8,Bg8g3][%mdl 32] [#]} 14. Bxh6 $1 {[%mdl 512]} d5 $1 $36 {[%cal Rd5e4][%mdl 2048] Black is pushing.} (14... gxh6 15. Qxf6) 15. Bxg7 (15. Rd1 $1 $11 {keeps the balance.}) 15... Bxg7 $17 16. Nxg7 dxe4 17. Qxf6 exf3 {Hoping for ...Rdg8.} 18. Nf5 $2 {[%mdl 8192] White does not recover from this.} (18. Qf5 $17 {is a better chance.} Rhg8 19. Qxd7+ Rxd7 20. gxf3) 18... Rdg8 19. Ng3 ({Stronger than} 19. Ne7+ Kb7 $17) 19... Kb7 {aiming for ...Qg4.} 20. a4 $2 {[#]} ({Avoid the trap} 20. gxf3 $2 Qh3 $19) (20. Qf4 $19 Rg4 21. Qd2 (21. Qf6 $2 Rgh4 $19)) 20... Rxh2 $3 {[%mdl 512] Black mates.} 21. Ra3 (21. Kxh2 Qg4) 21... Rxg3 22. Rb3+ {[#]} Ka7 $1 {Accuracy: White = 41%, Black = 84%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Kaliksteyn, Alexander"]
[Black "Korley, Kassa"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2394"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,40,16,16,14,16,13,14,21,22,22,22,24,22,24,14,35,33,36,20,32,18,16,0,6,0,0,0,12,4,5,6,6]} 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nf3 Bd6 5. Bxd6 Qxd6 6. c4 O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 7. Nc3 b6 8. Rc1 a6 9. cxd5 exd5 10. Be2 Nbd7 11. O-O Bb7 {[#]} 12. Qc2 $146 ({Predecessor:} 12. Qb3 Rfe8 13. Rfd1 Rac8 14. Qa4 b5 15. Qa5 Nb8 16. Nb1 Nc6 17. Qa3 Qxa3 18. Nxa3 {1-0 (52) Nikolov,M (2577)-Rakesh,K (2435) Cappelle-la-Grande 2019}) 12... g6 13. Rfd1 Rfe8 14. a3 c6 15. Qb3 Rab8 {The position is equal.} 16. Qb4 c5 17. dxc5 bxc5 {[%cal Bb6c5,Bc5b4][%mdl 32]} 18. Qa5 Rec8 19. b4 d4 20. exd4 cxb4 $1 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Wang, Qibiao"]
[Black "Colas, Joshua"]
[Result "1-0"]
[ECO "A78"]
[WhiteElo "2362"]
[BlackElo "2319"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,83,36,49,7,22,21,20,28,42,32,34,27,38,0,0,0,116,116,111,119,123,113,225,112,125,122,100,106,138,151,168,162,243,150,281,277,262,205,262,238,330,295,491,484,483,472,475,436,550,545,522,488,549,537,597,595,875,749,882,446,29988,607]} 1. d4 Nf6 2. Nf3 c5 3. d5 e6 4. c4 exd5 5. cxd5 d6 6. Nc3 g6 7. Nd2 Na6 8. e4 Nc7 9. Be2 Bg7 10. O-O O-O 11. a4 b6 {11...Nfe8 is not played anymore.} 12. Re1 Re8 13. Bf1 {A78: Modern Benoni: Classical: 9...Re8 10 Nd2 Na6.} Rb8 14. Nc4 Ba6 15. Bg5 {The position is equal.} h6 16. Bh4 {f4 is the strong threat.} Bxc4 17. Bxc4 a6 18. Qd3 g5 19. Bg3 $36 {[%mdl 2048] [#] White is more active.} Ng4 $146 (19... b5 $1 $11 {remains equal.} 20. axb5 axb5 21. Nxb5 Nxb5 22. Bxb5 Rxe4 23. Rxe4 Nxe4) ({Predecessor:} 19... b5 20. axb5 axb5 21. Nxb5 Nxb5 22. Bxb5 Rxe4 23. Rxe4 Nxe4 24. Qxe4 Rxb5 25. Bxd6 Rxb2 26. Bxc5 Rd2 27. Re1 {½-½ (27) Sergienko,S (2425)-Kovchan,A (2441) Smolensk 2000}) 20. Bxa6 $16 h5 21. h3 h4 {[#]} 22. Bxd6 $1 ({Don't play} 22. hxg4 $6 hxg3 23. Bb5 (23. fxg3 $2 Bd4+ 24. Kf1 Qf6+ 25. Qf3 Nxa6 $19) 23... gxf2+ 24. Kxf2 Nxb5 $14) 22... Nxa6 (22... Qxd6 $16 23. hxg4 Nxa6) 23. Qxa6 (23. Bxb8 $18 {is the precise move to win.} Nxf2 24. Kxf2 (24. Qxa6 Bd4 $18)) 23... Qxd6 24. hxg4 Qf4 25. Qe2 Bd4 26. Qf3 Qe5 27. Rad1 Rbd8 (27... Qg3 {is a better defense.} 28. Re2 Qxf3 29. gxf3 Ra8) 28. Qf5 Qg7 (28... Kg7 $16 29. Qxe5+ Bxe5) 29. Nb5 $18 Bxb2 30. d6 c4 31. Qd5 c3 {Black wants to play ...c2.} 32. Qb3 Re5 $2 {[#]} (32... Re6 33. Re3 Kh7) 33. Nxc3 Bxc3 34. Qxc3 Rc5 35. Qb4 Qe5 36. Qxb6 Rd7 37. Re2 Kh7 38. Red2 Kh6 39. Qb4 Ra5 40. Rd3 Raa7 41. Qd4 Qe6 (41... Qxd4 $18 42. Rxd4 f6) 42. Qh8+ {Accuracy: White = 72%, Black = 34%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Perunovic, Milos"]
[Black "Kaliksteyn, Alexander"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2591"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,25,-5,0,6,0,-7,-20,-18,-9,-22,-22,-12,-19,-16,-24,-25,-23,-33]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 a6 5. Bc4 b5 6. Bd5 {B23: Closed Sicilian: Lines without g3.} Rb8 {Threatens to win with ...e6.} 7. Nxd4 (7. a3 {looks sharper.} e6 8. Ba2 Nxf3+ 9. Qxf3 Bd6 10. d3) 7... cxd4 8. Ne2 {The position is equal.} Nf6 9. Bb3 Nxe4 10. Nxd4 e6 11. O-O Nc5 12. Qg4 Bb7 13. d3 {[#] Not much happened in this game. Accuracy: White = 100%, Black = 100%.} {Predecessor:} Be7 $146 14. Qxg7 Bf6 15. Qg4 h5 16. Qf4 Rg8 17. f3 d6 18. Qe3 Be5 19. Qf2 Qf6 {1-0 (60) Sivuk,V (2324)-Nijs,N (2150) Herceg Novi 2008} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Khamrakulov, Djurabek"]
[Black "Niemann, Hans Moke"]
[Result "1/2-1/2"]
[WhiteElo "2525"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,14,-26,-18]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. b3 d5 6. Bb2 c5 7. c4 d4 {[#]} {Predecessor:} 8. b4 $146 {A05: Réti Opening: 1 Nf3 Nf6.} Nfd7 9. a3 e5 10. d3 Nc6 11. Nbd2 a5 12. Ne4 axb4 13. axb4 Rxa1 14. Qxa1 cxb4 15. e3 dxe3 16. fxe3 Qe7 {0-1 (50) Zvjaginsev,V (2642)-Inarkiev,E (2693) Moscow 2018} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Korley, Kassa"]
[Black "Paragua, Mark"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2430"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,48,28,31,20,20,25,-20,0,-47,0,0,0,-8,0,0,0,-38,-28,-28,-33,-70,-58,-118,-49,-111,-98,-131,-21,-116,-129,-117,-112,-660,-641]} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Be2 d6 6. c3 c5 7. O-O Nc6 8. h3 cxd4 9. exd4 Nd5 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} 10. Bg3 e5 11. c4 {[#]} e4 $146 {The position is equal.} ({Predecessor:} 11... Nb6 12. Nc3 exd4 13. Nb5 Ne5 14. Nfxd4 Nbxc4 15. Bxc4 Nxc4 16. Rc1 a6 17. Rxc4 axb5 18. Nxb5 {0-1 (57) Fronda Pascua,J (2165)-Laylo,D (2451) Subic Bay 2016}) 12. Nfd2 Nde7 13. Nxe4 Nxd4 14. Nbc3 d5 $36 {[%mdl 2048] Black is pushing.} 15. cxd5 Nxd5 16. Bc4 Be6 {White must now prevent ...Nxc3.} 17. Bxd5 Bxd5 18. Nd6 Bc6 19. Re1 {[#]} (19. Ne2 $15 Nb5 20. Nc3 Nxc3 21. bxc3) 19... Qg5 (19... f5 $1 $17 {[%cal Rf5f4] Strongly threatening ...f4.} 20. Bf4 g5) 20. h4 ({White should play} 20. Rc1 $15) 20... Qc5 $17 {aiming for ...f5.} 21. Rc1 {[#]} Qb4 (21... Rad8 $1 $17 {Threatens to win with ...Bh6.} 22. Qg4 Qb4) 22. Qd3 (22. Ne2 $1 $11) 22... Rad8 ({Not} 22... Qxb2 $2 23. Nc4 $18) 23. Qc4 Qxb2 24. Kh2 $2 {[%mdl 8192] [#]} (24. Rb1 $17 Qd2 25. Rbc1) 24... Rxd6 $1 {[%mdl 512] Accuracy: White = 38%, Black = 64%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Wang, Kevin"]
[Black "Wang, Qibiao"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2418"]
[BlackElo "2362"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,99,14,8,19,20,16,15,25,17,22,18,20,0,0,0,0,0,10,18,18,12,29,22,12,15,12,-50,-47,-83,-85,-156,-153,-148,-140,-153,-88,-85,-15,-23,0,0,0,-128,-101,-110,66,59,71,45,47,52,79,22,110,17,12,22,210,193,177,203,252,239,374,373,381,366,480,479,485,485,480,476,479,460,1026,1020,963,973,12841,12840,12841,12839,29986,12845,12845,12840]} 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. O-O O-O 6. h3 d6 7. c3 h6 8. Re1 a6 {8...a5 is the hot move. Played by Hikaru Nakamura in February 2020. C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. a4 Re8 10. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3,Be3d5][%mdl 32]} Ba7 {The position is equal.} 11. Nf1 Be6 12. Bxe6 Rxe6 13. Be3 Bxe3 14. Nxe3 d5 15. Qc2 Qd7 16. b4 Rae8 17. b5 Ne7 {[#]} 18. c4 $146 ({Predecessor:} 18. Reb1 Ng6 19. c4 d4 20. Nf5 Ra8 21. Kh2 Kh7 22. g4 Ne7 23. Re1 c5 24. bxc6 Qxc6 25. g5 Nh5 26. Rg1 Nxf5 27. exf5 Qxf3 {½-½ (27) Rudenko,A (2329)-Guberna,A (2390) ICCF email 2018}) 18... d4 19. Nd5 Ng6 20. bxa6 (20. Rec1 $11) 20... Rxa6 21. Rab1 Nxd5 22. cxd5 (22. exd5 $142 b6 23. Rb5) 22... Nf4 $1 $17 {White must now prevent ...Rg6!} 23. Nh4 {[#]} (23. Rxb7 $2 Rg6 $1 $19 {[%mdl 512]}) 23... c6 $1 24. d6 g6 (24... Rea8 $142 25. Nf5 Rxa4) 25. Nf3 g5 (25... Kg7 $17) 26. Nh2 $11 Kg7 27. Nf1 Rea8 28. Rb4 (28. Ng3 $11) 28... c5 $1 $17 {[%cal Rc5b4]} (28... Qxd6 29. Rxb7 Rxa4 30. Ng3 $11) 29. Rb5 Ne6 $2 (29... Qxd6 $6 30. Ng3 $11) (29... Rxa4 $17 30. Reb1 Ra2) 30. Reb1 Qxd6 31. Ng3 Kh7 32. Nf5 Qc6 33. Rxb7 ({White should play} 33. Ne7 $16 Qe8 34. Nd5) 33... R6a7 {[#]} (33... R8a7 $1 $11 {remains equal.} 34. Rxa7 Rxa7) 34. R7b6 ({Better is} 34. R7b5 $1 $16) 34... Qxa4 $11 35. Qe2 $36 {[%mdl 2048] Hoping for Qh5. White has some pressure.} Qe8 $2 (35... Rg8 $1 $11) 36. Qh5 $18 {aiming for h4.} Qf8 37. h4 g4 38. Kh2 ({Much less strong is} 38. Qxg4 $6 Qd8 $16) 38... c4 (38... Ra6 $142 39. g3 (39. Qxg4 Rxb6 40. Rxb6 Qg8 $16) (39. Nxh6 Qxh6 40. Qxf7+ Kh8 $18) 39... Rxb6 40. Rxb6 Ra7) 39. dxc4 d3 40. Rd6 Rd8 41. Rxd8 Nxd8 42. Rb6 {[%cal Rb6h6]} Ne6 43. Rd6 Rc7 44. g3 Rxc4 {[#]} (44... Rb7 $142 45. Rxd3 f6) 45. Nxh6 $1 {[%mdl 576] Double Attack, Discovered Attack} Ng7 (45... Qxh6 46. Qxf7+) 46. Qxe5 Rc2 47. Nxg4 Ne6 48. Rxd3 Qc8 49. Qh5+ (49. Rf3 $142 Ng7 50. Nf6+ Kh8 51. Qg5 Nf5 52. Rf4 Rxf2+ 53. Rxf2 Qb8 54. Qxf5) 49... Kg8 50. Qh6 {White used his chance. Accuracy: White = 75%, Black = 58%.} 1-0

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Colas, Joshua"]
[Black "Yoo, Christopher Woojin"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "2319"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,-15,-10,-6,-6,-27,-11,-30,-22,-9,-7,-6,-3,-10,-9,-14,-11,-22,0,0,0,-21,-7,-18,-17,-45,-39,-29,-20,-19,-20,-22,-22,-29,-10,-22,-14,-22,-22,-22,-22,-22,-22,-37,0,0,0,0,0,0,25,0,0,-109,-107,-95,-94,-111,-96,-496,-481,-635,-625,-598,-572,-940,-370,-370,-370,-431,-422,-406,-402,-513,-486,-486,-486,-486,-486,-816,-816,-1190,-1240,-2420,-933,-12841,-6133,-12841,-12842,-29991,-29992,-29992,-29993,-29993,-29994]} 1. b3 Nf6 2. Bb2 g6 3. Bxf6 exf6 4. c4 b6 5. Nc3 Bb7 6. e3 {A01: Nimzowitsch-Larsen Opening.} f5 7. Nf3 Bg7 8. Be2 {The position is equal.} O-O 9. Rc1 c5 10. O-O Nc6 {[%cal Bb8c6,Bc6e7,Be7c8,Bc8d6][%mdl 32]} 11. d4 cxd4 12. exd4 {[#]} Qf6 $146 {[%cal Rc6d4]} ({Predecessor:} 12... Re8 13. Nb5 d6 14. d5 Ne5 15. Re1 a6 16. Nbd4 Nxf3+ 17. Nxf3 Qf6 18. Qd2 a5 {0-1 (44) Garcia Ramos,D (2231)-Swayams,M (2465) Montcada 2016}) 13. d5 Ne7 14. Qd2 Nc8 15. Nb5 a6 16. Nc3 Nd6 17. Na4 b5 18. Nb6 Rad8 19. cxb5 Nxb5 20. Bxb5 Qxb6 ({Reject} 20... axb5 $6 21. Qa5 $16) 21. Bc4 d6 22. Rfe1 Rfe8 23. Re2 Bf6 24. Rce1 Rxe2 25. Rxe2 Rc8 26. h4 Kg7 27. h5 a5 28. h6+ Kg8 29. Qf4 Qd8 30. g4 fxg4 31. Bb5 (31. Qxg4 $11 {keeps the balance.} Bh8 32. Qe4) 31... Qf8 $1 $17 32. Qxf6 {Threatens to win with Ng5.} gxf3 33. Re7 Bxd5 34. Qxd6 $2 {[%mdl 8192] This costs White the game.} (34. Qg5 $17) 34... Qxh6 $19 {( -> ...Rc1+)} 35. Bf1 (35. Qxd5 {gets mated.} Rc1+ 36. Qd1 Qg5+ $1 {[%mdl 512]} 37. Kf1 Rxd1+ 38. Re1 Qg2#) 35... Qg5+ 36. Kh2 Be6 37. Rb7 Qc5 $2 (37... Qh4+ 38. Kg1 {[#]} Rc1 $1 {[%mdl 512]} 39. Rb8+ Bc8) 38. Qxc5 Rxc5 {[%mdl 4096] Endgame KRB-KRB} 39. Rb8+ Kg7 40. Kg3 Rc2 41. a4 Rb2 42. Ra8 Rxb3 43. Rxa5 Ra3 44. Bb5 (44. Rc5 $142 Rxa4 45. Bh3) 44... g5 45. Bc6 Kf6 46. Ra7 h5 47. a5 h4+ 48. Kh2 g4 49. a6 {[#]} g3+ $1 {Black mates.} 50. fxg3 Ra2+ 51. Kh1 f2 {Accuracy: White = 55%, Black = 91%.} 0-1

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Paragua, Mark"]
[Black "Perunovic, Milos"]
[Result "1/2-1/2"]
[WhiteElo "2513"]
[BlackElo "2591"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,18,6,4,1]} 1. Nf3 c5 2. g3 Nc6 3. Bg2 g6 4. O-O Bg7 5. c4 d6 6. Nc3 e5 7. a3 a5 8. d3 Nge7 9. Ne1 Be6 {[#] A rather calm draw. A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} {Predecessor:} 10. Nc2 $146 d5 11. cxd5 Nxd5 12. Ne3 Nde7 13. Nc4 O-O 14. Bg5 f6 15. Be3 b6 16. Qb3 Rb8 17. Qa4 Nd4 18. Bxd4 exd4 {0-1 (57) Christiansen,J (2558)-Bachmann,A (2629) chess24.com INT 2019} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Yoo, Christopher Woojin"]
[Black "Wang, Kevin"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2430"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,35,32,15,19,21,30,4,34,31,27,32,47,14,45,3,7,0,0,0,0,0,0,0,0,6,15,0,0,0,0,0,0,0,0,0,0,0,0,-27,-30,-25,-25,-26,-32,-46,0,-8,0,-8,0,-8,0,-8]} 1. e4 c6 2. d4 g6 3. Nc3 d5 4. h3 Bg7 5. Nf3 dxe4 6. Nxe4 Nf6 7. Nxf6+ {7.Bd3 is the modern continuation. Played by Ian Nepomniachtchi in January 2020.} exf6 8. Be2 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} O-O 9. O-O Re8 10. c4 {[#] White has an edge.} a5 $146 ({Predecessor:} 10... Nd7 11. Re1 f5 12. Be3 Nf6 13. Qc2 Be6 14. Rad1 Qc7 15. Qc1 Rad8 16. Bf4 Qa5 {½-½ (85) Henderson de la Fuente,L (2494)-Cramling,P (2462) Douglas 2019}) 11. Be3 f5 12. Qc2 Na6 13. a3 Qd6 14. Qd2 Nc5 15. dxc5 Qxd2 16. Nxd2 {[#] Hoping for Rfe1.} f4 17. Bxf4 {And now Bd3 would win.} Rxe2 18. Rfe1 Rxe1+ 19. Rxe1 {White threatens Re8+ and mate.} Bf5 20. Be5 Re8 21. Nf3 $1 f6 22. g4 Bxg4 23. hxg4 {[#] Threatens to win with Bd4.} fxe5 $11 {[%mdl 4096] Endgame KRB-KRN} 24. b4 axb4 25. axb4 e4 {With the idea ...Bc3.} 26. b5 cxb5 27. cxb5 Rc8 28. Rxe4 Rxc5 29. b6 Kf7 30. Rf4+ {The position is equal.} Ke7 31. Re4+ Kf7 32. Rf4+ Ke7 33. Re4+ {Accuracy: White = 79%, Black = 85%.} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Kaliksteyn, Alexander"]
[Black "Khamrakulov, Djurabek"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2394"]
[BlackElo "2525"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,32,0,0,0,0,0,5,0,12,17,27,25,30,17,18,12]} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d5 6. Nbd2 b6 7. Ne5 Bb7 8. c3 c5 9. Be2 Nc6 10. O-O Nd7 {[%cal Rc6e5] A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} 11. Nxc6 Bxc6 12. Nf3 Re8 13. a4 e5 14. dxe5 Nxe5 15. Nxe5 Bxe5 16. Bxe5 Rxe5 {[#] A rather calm draw.} {Predecessor:} 17. Bf3 $146 Qd7 18. a5 Rb8 19. axb6 Rxb6 20. Qd2 Qb7 21. b4 cxb4 22. cxb4 Re7 23. Rfb1 {1-0 (35) Kvisla,J (2234)-Pavlov,E (2165) Caleta 2018} 1/2-1/2

[Event "Marshall Chess Club GM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Wang, Qibiao"]
[Black "Korley, Kassa"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2362"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,114,1,14,11,17,0,0,0,14,4,18,16,25,0,4,-16,-9,-9,0,-9,-9,-16,-16,-16,2,0,0,0,10,0,5,-16,-16,-26,21,-18,-9,-35,-35,-299,-292,-458,-395,-380,-225,-227,-138,-150,-150,-144,-90,-85,-88,-90,-66,-97,-52,-52,-48,-55,-33,-33,-33,-33,-33,-58,-33,-45,-33,-33,-18,-55,-45,-45,-36,-89,-70,-97,-104,-105,-8,-8,-8,-6,-12,-12,0,0,0,0,0,-4,-4,-4,-4,-4,0]} 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nf3 Bd6 5. Bxd6 Qxd6 6. c4 O-O 7. Nc3 Qe7 8. Be2 Nbd7 9. cxd5 exd5 10. O-O c6 11. Qc2 {D35: Queen's Gambit Declined: Exchange Variation.} Nb6 12. Ne5 g6 13. Bd3 Ng4 14. Nf3 Be6 15. Rae1 Nf6 16. h3 Rac8 17. Na4 Nxa4 18. Qxa4 a6 19. Rc1 Ne8 20. Qa5 Nd6 21. Qc5 f6 22. Nd2 Rf7 23. a4 g5 24. Rfe1 f5 25. g3 Rg7 26. Nf3 g4 27. Nh4 gxh3 28. Kh2 Re8 29. Bf1 $2 {[%mdl 8192]} (29. b4 $15) 29... Qc7 $1 $19 30. Bxh3 (30. Bd3 $142 Ne4 31. Bxe4 fxe4 32. Qc2) 30... Ne4 $1 {[%csl LRc5,LRf2][%mdl 64] Double Attack} 31. Qc2 {[#]} Nxg3 (31... Rxg3 $142 $1 {[%mdl 512]} 32. Rg1 (32. fxg3 Qxg3+) 32... Rxg1+ 33. Kxg1 f4) 32. f4 Qe7 33. Nf3 Ne4 34. Rg1 {[#]} Kh8 (34... Rg4 $142 $1 {[%mdl 512]} 35. Kh1 (35. Bxg4 fxg4) 35... Kh8) 35. Rxg7 $17 Qxg7 36. Rg1 Qe7 37. Ng5 Nxg5 38. Rxg5 Rf8 39. a5 h6 40. Rg6 Kh7 41. Rg3 Rf7 42. Qg2 Qf6 43. b4 Re7 44. Qc2 Bd7 45. Qg2 Be8 46. Qc2 Bg6 47. Qd3 (47. Bf1 $1 $15) 47... Re4 48. Qd2 Bh5 49. Qc2 {[#]} Qh4 ({Better is} 49... Kh8 $1 $17 50. Qc3 Re8) 50. Kg2 $11 {The position is equal.} Bg4 {And now ...h5 would win.} 51. Bxg4 fxg4 {[%mdl 4096] Endgame [#] KQR-KQR} 52. b5 $1 {[%mdl 512]} Qf6 (52... axb5 53. a6) 53. bxa6 bxa6 {aiming for ...h5.} 54. Rxg4 Qf5 $1 {[%csl LRe3,LRg4]} 55. Rg3 {Threatens to win with Qc5!} Rxf4 $1 56. Qxf5+ Rxf5 57. Rh3 $1 Rf8 {Whites escaped into a draw. Accuracy: White = 70%, Black = 76%.} 1/2-1/2

